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Finding the Fourth Proportional to 288,799.29, 398,541.72 and 161,474.88

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Solution

The fourth proportional to 288,799.29, 398,541.72 and 161,474.88 is: 222,834.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,799.29 : 398,541.72 = 161,474.88 : x
  2. Step 2: Convert to fraction form
    288,799.29/398,541.72 = 161,474.88/x
  3. Step 3: Cross multiply
    288,799.29x = 398,541.72 × 161,474.88
  4. Step 4: Simplify right side
    288,799.29x = 64,354,478,512.06
  5. Step 5: Solve for x
    x = 64,354,478,512.06/288,799.29
  6. Step 6: Final answer
    x = 222,834.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.