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Finding the Fourth Proportional to 168,732, 253,140.32 and 50,402.88

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Solution

The fourth proportional to 168,732, 253,140.32 and 50,402.88 is: 75,616.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,732 : 253,140.32 = 50,402.88 : x
  2. Step 2: Convert to fraction form
    168,732/253,140.32 = 50,402.88/x
  3. Step 3: Cross multiply
    168,732x = 253,140.32 × 50,402.88
  4. Step 4: Simplify right side
    168,732x = 12,759,001,172.12
  5. Step 5: Solve for x
    x = 12,759,001,172.12/168,732
  6. Step 6: Final answer
    x = 75,616.96

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.