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Finding the Fourth Proportional to 378,472.87, 567,818.88 and 112,239.79

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Solution

The fourth proportional to 378,472.87, 567,818.88 and 112,239.79 is: 168,392.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,472.87 : 567,818.88 = 112,239.79 : x
  2. Step 2: Convert to fraction form
    378,472.87/567,818.88 = 112,239.79/x
  3. Step 3: Cross multiply
    378,472.87x = 567,818.88 × 112,239.79
  4. Step 4: Simplify right side
    378,472.87x = 63,731,868,448.94
  5. Step 5: Solve for x
    x = 63,731,868,448.94/378,472.87
  6. Step 6: Final answer
    x = 168,392.17

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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.