Home / 290,821.28-435,920.88-132,812.96

Finding the Fourth Proportional to 290,821.28, 435,920.88 and 132,812.96

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Solution

The fourth proportional to 290,821.28, 435,920.88 and 132,812.96 is: 199,077.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,821.28 : 435,920.88 = 132,812.96 : x
  2. Step 2: Convert to fraction form
    290,821.28/435,920.88 = 132,812.96/x
  3. Step 3: Cross multiply
    290,821.28x = 435,920.88 × 132,812.96
  4. Step 4: Simplify right side
    290,821.28x = 57,895,942,398.60
  5. Step 5: Solve for x
    x = 57,895,942,398.60/290,821.28
  6. Step 6: Final answer
    x = 199,077.39

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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.