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Finding the Fourth Proportional to 265,923.92, 398,889.39 and 88,430.96

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Solution

The fourth proportional to 265,923.92, 398,889.39 and 88,430.96 is: 132,647.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,923.92 : 398,889.39 = 88,430.96 : x
  2. Step 2: Convert to fraction form
    265,923.92/398,889.39 = 88,430.96/x
  3. Step 3: Cross multiply
    265,923.92x = 398,889.39 × 88,430.96
  4. Step 4: Simplify right side
    265,923.92x = 35,274,171,691.51
  5. Step 5: Solve for x
    x = 35,274,171,691.51/265,923.92
  6. Step 6: Final answer
    x = 132,647.61

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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.