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Finding the Fourth Proportional to 215,337.85, 322,768.91 and 88,908.39

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Solution

The fourth proportional to 215,337.85, 322,768.91 and 88,908.39 is: 133,264.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,337.85 : 322,768.91 = 88,908.39 : x
  2. Step 2: Convert to fraction form
    215,337.85/322,768.91 = 88,908.39/x
  3. Step 3: Cross multiply
    215,337.85x = 322,768.91 × 88,908.39
  4. Step 4: Simplify right side
    215,337.85x = 28,696,863,685.61
  5. Step 5: Solve for x
    x = 28,696,863,685.61/215,337.85
  6. Step 6: Final answer
    x = 133,264.38

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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.