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Finding the Fourth Proportional to 215,355.93, 323,100.09 and 110,248.71

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Solution

The fourth proportional to 215,355.93, 323,100.09 and 110,248.71 is: 165,406.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,355.93 : 323,100.09 = 110,248.71 : x
  2. Step 2: Convert to fraction form
    215,355.93/323,100.09 = 110,248.71/x
  3. Step 3: Cross multiply
    215,355.93x = 323,100.09 × 110,248.71
  4. Step 4: Simplify right side
    215,355.93x = 35,621,368,123.38
  5. Step 5: Solve for x
    x = 35,621,368,123.38/215,355.93
  6. Step 6: Final answer
    x = 165,406.95

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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.