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Finding the Fourth Proportional to 265,904.13, 398,856.25 and 88,412.68

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Solution

The fourth proportional to 265,904.13, 398,856.25 and 88,412.68 is: 132,619.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,904.13 : 398,856.25 = 88,412.68 : x
  2. Step 2: Convert to fraction form
    265,904.13/398,856.25 = 88,412.68/x
  3. Step 3: Cross multiply
    265,904.13x = 398,856.25 × 88,412.68
  4. Step 4: Simplify right side
    265,904.13x = 35,263,950,606.34
  5. Step 5: Solve for x
    x = 35,263,950,606.34/265,904.13
  6. Step 6: Final answer
    x = 132,619.04

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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.