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Finding the Fourth Proportional to 215,321.88, 323,101.74 and 88,932.72

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Solution

The fourth proportional to 215,321.88, 323,101.74 and 88,932.72 is: 133,448.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,321.88 : 323,101.74 = 88,932.72 : x
  2. Step 2: Convert to fraction form
    215,321.88/323,101.74 = 88,932.72/x
  3. Step 3: Cross multiply
    215,321.88x = 323,101.74 × 88,932.72
  4. Step 4: Simplify right side
    215,321.88x = 28,734,316,574.93
  5. Step 5: Solve for x
    x = 28,734,316,574.93/215,321.88
  6. Step 6: Final answer
    x = 133,448.20

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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.