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Finding the Fourth Proportional to 247,464.96, 371,255.04 and 81,242.88

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Solution

The fourth proportional to 247,464.96, 371,255.04 and 81,242.88 is: 121,883.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,464.96 : 371,255.04 = 81,242.88 : x
  2. Step 2: Convert to fraction form
    247,464.96/371,255.04 = 81,242.88/x
  3. Step 3: Cross multiply
    247,464.96x = 371,255.04 × 81,242.88
  4. Step 4: Simplify right side
    247,464.96x = 30,161,828,664.12
  5. Step 5: Solve for x
    x = 30,161,828,664.12/247,464.96
  6. Step 6: Final answer
    x = 121,883.23

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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.