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Finding the Fourth Proportional to 311,340.97, 429,593.45 and 175,345.79

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Solution

The fourth proportional to 311,340.97, 429,593.45 and 175,345.79 is: 241,945.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,340.97 : 429,593.45 = 175,345.79 : x
  2. Step 2: Convert to fraction form
    311,340.97/429,593.45 = 175,345.79/x
  3. Step 3: Cross multiply
    311,340.97x = 429,593.45 × 175,345.79
  4. Step 4: Simplify right side
    311,340.97x = 75,327,400,721.11
  5. Step 5: Solve for x
    x = 75,327,400,721.11/311,340.97
  6. Step 6: Final answer
    x = 241,945.04

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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.