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Finding the Fourth Proportional to 510,893.60, 766,340.40 and 155,909.44

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Solution

The fourth proportional to 510,893.60, 766,340.40 and 155,909.44 is: 233,864.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,893.60 : 766,340.40 = 155,909.44 : x
  2. Step 2: Convert to fraction form
    510,893.60/766,340.40 = 155,909.44/x
  3. Step 3: Cross multiply
    510,893.60x = 766,340.40 × 155,909.44
  4. Step 4: Simplify right side
    510,893.60x = 119,479,702,613.38
  5. Step 5: Solve for x
    x = 119,479,702,613.38/510,893.60
  6. Step 6: Final answer
    x = 233,864.16

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.