Home / 312,932.53-431,839.24-169,688.89

Finding the Fourth Proportional to 312,932.53, 431,839.24 and 169,688.89

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Solution

The fourth proportional to 312,932.53, 431,839.24 and 169,688.89 is: 234,166.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,932.53 : 431,839.24 = 169,688.89 : x
  2. Step 2: Convert to fraction form
    312,932.53/431,839.24 = 169,688.89/x
  3. Step 3: Cross multiply
    312,932.53x = 431,839.24 × 169,688.89
  4. Step 4: Simplify right side
    312,932.53x = 73,278,321,294.04
  5. Step 5: Solve for x
    x = 73,278,321,294.04/312,932.53
  6. Step 6: Final answer
    x = 234,166.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.