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Finding the Fourth Proportional to 108,388.80, 162,648 and 38,327.04

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Solution

The fourth proportional to 108,388.80, 162,648 and 38,327.04 is: 57,513.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,388.80 : 162,648 = 38,327.04 : x
  2. Step 2: Convert to fraction form
    108,388.80/162,648 = 38,327.04/x
  3. Step 3: Cross multiply
    108,388.80x = 162,648 × 38,327.04
  4. Step 4: Simplify right side
    108,388.80x = 6,233,816,401.92
  5. Step 5: Solve for x
    x = 6,233,816,401.92/108,388.80
  6. Step 6: Final answer
    x = 57,513.47

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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.