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Finding the Fourth Proportional to 510,221.68, 765,443.24 and 155,226.47

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Solution

The fourth proportional to 510,221.68, 765,443.24 and 155,226.47 is: 232,873.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,221.68 : 765,443.24 = 155,226.47 : x
  2. Step 2: Convert to fraction form
    510,221.68/765,443.24 = 155,226.47/x
  3. Step 3: Cross multiply
    510,221.68x = 765,443.24 × 155,226.47
  4. Step 4: Simplify right side
    510,221.68x = 118,817,053,268.04
  5. Step 5: Solve for x
    x = 118,817,053,268.04/510,221.68
  6. Step 6: Final answer
    x = 232,873.39

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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.