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Finding the Fourth Proportional to 265,116.36, 397,686.84 and 75,589.60

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Solution

The fourth proportional to 265,116.36, 397,686.84 and 75,589.60 is: 113,387.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,116.36 : 397,686.84 = 75,589.60 : x
  2. Step 2: Convert to fraction form
    265,116.36/397,686.84 = 75,589.60/x
  3. Step 3: Cross multiply
    265,116.36x = 397,686.84 × 75,589.60
  4. Step 4: Simplify right side
    265,116.36x = 30,060,989,160.86
  5. Step 5: Solve for x
    x = 30,060,989,160.86/265,116.36
  6. Step 6: Final answer
    x = 113,387.91

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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.