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Finding the Fourth Proportional to 327,157.76, 451,821.87 and 291,495.30

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Solution

The fourth proportional to 327,157.76, 451,821.87 and 291,495.30 is: 402,570.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,157.76 : 451,821.87 = 291,495.30 : x
  2. Step 2: Convert to fraction form
    327,157.76/451,821.87 = 291,495.30/x
  3. Step 3: Cross multiply
    327,157.76x = 451,821.87 × 291,495.30
  4. Step 4: Simplify right side
    327,157.76x = 131,703,951,542.21
  5. Step 5: Solve for x
    x = 131,703,951,542.21/327,157.76
  6. Step 6: Final answer
    x = 402,570.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.