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Finding the Fourth Proportional to 307,375.24, 424,179.68 and 171,417.77

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Solution

The fourth proportional to 307,375.24, 424,179.68 and 171,417.77 is: 236,557.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,375.24 : 424,179.68 = 171,417.77 : x
  2. Step 2: Convert to fraction form
    307,375.24/424,179.68 = 171,417.77/x
  3. Step 3: Cross multiply
    307,375.24x = 424,179.68 × 171,417.77
  4. Step 4: Simplify right side
    307,375.24x = 72,711,934,824.91
  5. Step 5: Solve for x
    x = 72,711,934,824.91/307,375.24
  6. Step 6: Final answer
    x = 236,557.55

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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.