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Finding the Fourth Proportional to 265,944.30, 398,919.90 and 88,451.34

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Solution

The fourth proportional to 265,944.30, 398,919.90 and 88,451.34 is: 132,678.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,944.30 : 398,919.90 = 88,451.34 : x
  2. Step 2: Convert to fraction form
    265,944.30/398,919.90 = 88,451.34/x
  3. Step 3: Cross multiply
    265,944.30x = 398,919.90 × 88,451.34
  4. Step 4: Simplify right side
    265,944.30x = 35,284,999,707.67
  5. Step 5: Solve for x
    x = 35,284,999,707.67/265,944.30
  6. Step 6: Final answer
    x = 132,678.16

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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.