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Finding the Fourth Proportional to 265,886.10, 398,679.48 and 88,297.92

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Solution

The fourth proportional to 265,886.10, 398,679.48 and 88,297.92 is: 132,397.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,886.10 : 398,679.48 = 88,297.92 : x
  2. Step 2: Convert to fraction form
    265,886.10/398,679.48 = 88,297.92/x
  3. Step 3: Cross multiply
    265,886.10x = 398,679.48 × 88,297.92
  4. Step 4: Simplify right side
    265,886.10x = 35,202,568,830.68
  5. Step 5: Solve for x
    x = 35,202,568,830.68/265,886.10
  6. Step 6: Final answer
    x = 132,397.18

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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.