Home / 443,086.20-664,499.70-158,743.80

Finding the Fourth Proportional to 443,086.20, 664,499.70 and 158,743.80

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Solution

The fourth proportional to 443,086.20, 664,499.70 and 158,743.80 is: 238,069.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,086.20 : 664,499.70 = 158,743.80 : x
  2. Step 2: Convert to fraction form
    443,086.20/664,499.70 = 158,743.80/x
  3. Step 3: Cross multiply
    443,086.20x = 664,499.70 × 158,743.80
  4. Step 4: Simplify right side
    443,086.20x = 105,485,207,476.86
  5. Step 5: Solve for x
    x = 105,485,207,476.86/443,086.20
  6. Step 6: Final answer
    x = 238,069.27

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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.