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Finding the Fourth Proportional to 265,876.90, 398,851.80 and 88,365.40

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Solution

The fourth proportional to 265,876.90, 398,851.80 and 88,365.40 is: 132,560.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,876.90 : 398,851.80 = 88,365.40 : x
  2. Step 2: Convert to fraction form
    265,876.90/398,851.80 = 88,365.40/x
  3. Step 3: Cross multiply
    265,876.90x = 398,851.80 × 88,365.40
  4. Step 4: Simplify right side
    265,876.90x = 35,244,698,847.72
  5. Step 5: Solve for x
    x = 35,244,698,847.72/265,876.90
  6. Step 6: Final answer
    x = 132,560.21

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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.