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Finding the Fourth Proportional to 247,238.88, 370,927.44 and 81,143.52

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Solution

The fourth proportional to 247,238.88, 370,927.44 and 81,143.52 is: 121,737.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,238.88 : 370,927.44 = 81,143.52 : x
  2. Step 2: Convert to fraction form
    247,238.88/370,927.44 = 81,143.52/x
  3. Step 3: Cross multiply
    247,238.88x = 370,927.44 × 81,143.52
  4. Step 4: Simplify right side
    247,238.88x = 30,098,358,146.19
  5. Step 5: Solve for x
    x = 30,098,358,146.19/247,238.88
  6. Step 6: Final answer
    x = 121,737.97

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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.