Home / 510,126.20-765,218.10-155,151.80

Finding the Fourth Proportional to 510,126.20, 765,218.10 and 155,151.80

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Solution

The fourth proportional to 510,126.20, 765,218.10 and 155,151.80 is: 232,736.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,126.20 : 765,218.10 = 155,151.80 : x
  2. Step 2: Convert to fraction form
    510,126.20/765,218.10 = 155,151.80/x
  3. Step 3: Cross multiply
    510,126.20x = 765,218.10 × 155,151.80
  4. Step 4: Simplify right side
    510,126.20x = 118,724,965,607.58
  5. Step 5: Solve for x
    x = 118,724,965,607.58/510,126.20
  6. Step 6: Final answer
    x = 232,736.46

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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.