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Finding the Fourth Proportional to 265,975.76, 398,850.36 and 88,435.28

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Solution

The fourth proportional to 265,975.76, 398,850.36 and 88,435.28 is: 132,615.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,975.76 : 398,850.36 = 88,435.28 : x
  2. Step 2: Convert to fraction form
    265,975.76/398,850.36 = 88,435.28/x
  3. Step 3: Cross multiply
    265,975.76x = 398,850.36 × 88,435.28
  4. Step 4: Simplify right side
    265,975.76x = 35,272,443,264.70
  5. Step 5: Solve for x
    x = 35,272,443,264.70/265,975.76
  6. Step 6: Final answer
    x = 132,615.26

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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.