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Finding the Fourth Proportional to 510,167.60, 765,251.40 and 286,218.80

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Solution

The fourth proportional to 510,167.60, 765,251.40 and 286,218.80 is: 429,328.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,167.60 : 765,251.40 = 286,218.80 : x
  2. Step 2: Convert to fraction form
    510,167.60/765,251.40 = 286,218.80/x
  3. Step 3: Cross multiply
    510,167.60x = 765,251.40 × 286,218.80
  4. Step 4: Simplify right side
    510,167.60x = 219,029,337,406.32
  5. Step 5: Solve for x
    x = 219,029,337,406.32/510,167.60
  6. Step 6: Final answer
    x = 429,328.20

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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.