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Finding the Fourth Proportional to 243,149.88, 364,721.04 and 124,752.90

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Solution

The fourth proportional to 243,149.88, 364,721.04 and 124,752.90 is: 187,127.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,149.88 : 364,721.04 = 124,752.90 : x
  2. Step 2: Convert to fraction form
    243,149.88/364,721.04 = 124,752.90/x
  3. Step 3: Cross multiply
    243,149.88x = 364,721.04 × 124,752.90
  4. Step 4: Simplify right side
    243,149.88x = 45,500,007,431.02
  5. Step 5: Solve for x
    x = 45,500,007,431.02/243,149.88
  6. Step 6: Final answer
    x = 187,127.41

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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.