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Finding the Fourth Proportional to 334,695.87, 502,043.79 and 85,377.87

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Solution

The fourth proportional to 334,695.87, 502,043.79 and 85,377.87 is: 128,066.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,695.87 : 502,043.79 = 85,377.87 : x
  2. Step 2: Convert to fraction form
    334,695.87/502,043.79 = 85,377.87/x
  3. Step 3: Cross multiply
    334,695.87x = 502,043.79 × 85,377.87
  4. Step 4: Simplify right side
    334,695.87x = 42,863,429,436.93
  5. Step 5: Solve for x
    x = 42,863,429,436.93/334,695.87
  6. Step 6: Final answer
    x = 128,066.80

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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.