Home / 288,191.76-397,789.10-167,387.36

Finding the Fourth Proportional to 288,191.76, 397,789.10 and 167,387.36

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Solution

The fourth proportional to 288,191.76, 397,789.10 and 167,387.36 is: 231,043.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,191.76 : 397,789.10 = 167,387.36 : x
  2. Step 2: Convert to fraction form
    288,191.76/397,789.10 = 167,387.36/x
  3. Step 3: Cross multiply
    288,191.76x = 397,789.10 × 167,387.36
  4. Step 4: Simplify right side
    288,191.76x = 66,584,867,285.78
  5. Step 5: Solve for x
    x = 66,584,867,285.78/288,191.76
  6. Step 6: Final answer
    x = 231,043.62

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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.