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Finding the Fourth Proportional to 510,335.37, 765,613.79 and 155,340.18

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Solution

The fourth proportional to 510,335.37, 765,613.79 and 155,340.18 is: 233,043.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,335.37 : 765,613.79 = 155,340.18 : x
  2. Step 2: Convert to fraction form
    510,335.37/765,613.79 = 155,340.18/x
  3. Step 3: Cross multiply
    510,335.37x = 765,613.79 × 155,340.18
  4. Step 4: Simplify right side
    510,335.37x = 118,930,583,754.91
  5. Step 5: Solve for x
    x = 118,930,583,754.91/510,335.37
  6. Step 6: Final answer
    x = 233,043.98

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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.