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Finding the Fourth Proportional to 265,973.76, 398,847.36 and 88,433.28

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Solution

The fourth proportional to 265,973.76, 398,847.36 and 88,433.28 is: 132,612.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,973.76 : 398,847.36 = 88,433.28 : x
  2. Step 2: Convert to fraction form
    265,973.76/398,847.36 = 88,433.28/x
  3. Step 3: Cross multiply
    265,973.76x = 398,847.36 × 88,433.28
  4. Step 4: Simplify right side
    265,973.76x = 35,271,380,264.14
  5. Step 5: Solve for x
    x = 35,271,380,264.14/265,973.76
  6. Step 6: Final answer
    x = 132,612.26

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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.