Home / 439,275.20-658,912.80-158,691.20

Finding the Fourth Proportional to 439,275.20, 658,912.80 and 158,691.20

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Solution

The fourth proportional to 439,275.20, 658,912.80 and 158,691.20 is: 238,036.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,275.20 : 658,912.80 = 158,691.20 : x
  2. Step 2: Convert to fraction form
    439,275.20/658,912.80 = 158,691.20/x
  3. Step 3: Cross multiply
    439,275.20x = 658,912.80 × 158,691.20
  4. Step 4: Simplify right side
    439,275.20x = 104,563,662,927.36
  5. Step 5: Solve for x
    x = 104,563,662,927.36/439,275.20
  6. Step 6: Final answer
    x = 238,036.80

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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.