Home / 356,720.40-492,150.60-229,470.48

Finding the Fourth Proportional to 356,720.40, 492,150.60 and 229,470.48

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Solution

The fourth proportional to 356,720.40, 492,150.60 and 229,470.48 is: 316,589.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,720.40 : 492,150.60 = 229,470.48 : x
  2. Step 2: Convert to fraction form
    356,720.40/492,150.60 = 229,470.48/x
  3. Step 3: Cross multiply
    356,720.40x = 492,150.60 × 229,470.48
  4. Step 4: Simplify right side
    356,720.40x = 112,934,034,414.29
  5. Step 5: Solve for x
    x = 112,934,034,414.29/356,720.40
  6. Step 6: Final answer
    x = 316,589.78

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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.