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Finding the Fourth Proportional to 247,665.68, 371,498.52 and 99,818

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Solution

The fourth proportional to 247,665.68, 371,498.52 and 99,818 is: 149,727

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,665.68 : 371,498.52 = 99,818 : x
  2. Step 2: Convert to fraction form
    247,665.68/371,498.52 = 99,818/x
  3. Step 3: Cross multiply
    247,665.68x = 371,498.52 × 99,818
  4. Step 4: Simplify right side
    247,665.68x = 37,082,239,269.36
  5. Step 5: Solve for x
    x = 37,082,239,269.36/247,665.68
  6. Step 6: Final answer
    x = 149,727

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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.