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Finding the Fourth Proportional to 265,854.32, 398,848.68 and 88,362.20

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Solution

The fourth proportional to 265,854.32, 398,848.68 and 88,362.20 is: 132,565.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,854.32 : 398,848.68 = 88,362.20 : x
  2. Step 2: Convert to fraction form
    265,854.32/398,848.68 = 88,362.20/x
  3. Step 3: Cross multiply
    265,854.32x = 398,848.68 × 88,362.20
  4. Step 4: Simplify right side
    265,854.32x = 35,243,146,831.90
  5. Step 5: Solve for x
    x = 35,243,146,831.90/265,854.32
  6. Step 6: Final answer
    x = 132,565.64

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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.