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Finding the Fourth Proportional to 265,918.30, 398,790.72 and 88,377.64

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Solution

The fourth proportional to 265,918.30, 398,790.72 and 88,377.64 is: 132,537.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,918.30 : 398,790.72 = 88,377.64 : x
  2. Step 2: Convert to fraction form
    265,918.30/398,790.72 = 88,377.64/x
  3. Step 3: Cross multiply
    265,918.30x = 398,790.72 × 88,377.64
  4. Step 4: Simplify right side
    265,918.30x = 35,244,182,687.50
  5. Step 5: Solve for x
    x = 35,244,182,687.50/265,918.30
  6. Step 6: Final answer
    x = 132,537.64

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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.