Home / 393,920.20-591,026.10-157,432.60

Finding the Fourth Proportional to 393,920.20, 591,026.10 and 157,432.60

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Solution

The fourth proportional to 393,920.20, 591,026.10 and 157,432.60 is: 236,207.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,920.20 : 591,026.10 = 157,432.60 : x
  2. Step 2: Convert to fraction form
    393,920.20/591,026.10 = 157,432.60/x
  3. Step 3: Cross multiply
    393,920.20x = 591,026.10 × 157,432.60
  4. Step 4: Simplify right side
    393,920.20x = 93,046,775,590.86
  5. Step 5: Solve for x
    x = 93,046,775,590.86/393,920.20
  6. Step 6: Final answer
    x = 236,207.17

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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.