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Finding the Fourth Proportional to 265,887.10, 398,680.98 and 88,298.92

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Solution

The fourth proportional to 265,887.10, 398,680.98 and 88,298.92 is: 132,398.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,887.10 : 398,680.98 = 88,298.92 : x
  2. Step 2: Convert to fraction form
    265,887.10/398,680.98 = 88,298.92/x
  3. Step 3: Cross multiply
    265,887.10x = 398,680.98 × 88,298.92
  4. Step 4: Simplify right side
    265,887.10x = 35,203,099,958.54
  5. Step 5: Solve for x
    x = 35,203,099,958.54/265,887.10
  6. Step 6: Final answer
    x = 132,398.68

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1.5x scale

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.