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Finding the Fourth Proportional to 510,519.39, 765,785.24 and 155,536.49

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Solution

The fourth proportional to 510,519.39, 765,785.24 and 155,536.49 is: 233,306.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,519.39 : 765,785.24 = 155,536.49 : x
  2. Step 2: Convert to fraction form
    510,519.39/765,785.24 = 155,536.49/x
  3. Step 3: Cross multiply
    510,519.39x = 765,785.24 × 155,536.49
  4. Step 4: Simplify right side
    510,519.39x = 119,107,543,716.80
  5. Step 5: Solve for x
    x = 119,107,543,716.80/510,519.39
  6. Step 6: Final answer
    x = 233,306.60

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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.