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Finding the Fourth Proportional to 253,306.24, 379,726.08 and 112,988.32

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Solution

The fourth proportional to 253,306.24, 379,726.08 and 112,988.32 is: 169,378.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,306.24 : 379,726.08 = 112,988.32 : x
  2. Step 2: Convert to fraction form
    253,306.24/379,726.08 = 112,988.32/x
  3. Step 3: Cross multiply
    253,306.24x = 379,726.08 × 112,988.32
  4. Step 4: Simplify right side
    253,306.24x = 42,904,611,839.39
  5. Step 5: Solve for x
    x = 42,904,611,839.39/253,306.24
  6. Step 6: Final answer
    x = 169,378.42

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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.