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Finding the Fourth Proportional to 247,660.68, 371,491.08 and 99,813

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Solution

The fourth proportional to 247,660.68, 371,491.08 and 99,813 is: 149,719.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,660.68 : 371,491.08 = 99,813 : x
  2. Step 2: Convert to fraction form
    247,660.68/371,491.08 = 99,813/x
  3. Step 3: Cross multiply
    247,660.68x = 371,491.08 × 99,813
  4. Step 4: Simplify right side
    247,660.68x = 37,079,639,168.04
  5. Step 5: Solve for x
    x = 37,079,639,168.04/247,660.68
  6. Step 6: Final answer
    x = 149,719.52

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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.