Home / 443,285.76-664,736.28-243,546.24

Finding the Fourth Proportional to 443,285.76, 664,736.28 and 243,546.24

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Solution

The fourth proportional to 443,285.76, 664,736.28 and 243,546.24 is: 365,213.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,285.76 : 664,736.28 = 243,546.24 : x
  2. Step 2: Convert to fraction form
    443,285.76/664,736.28 = 243,546.24/x
  3. Step 3: Cross multiply
    443,285.76x = 664,736.28 × 243,546.24
  4. Step 4: Simplify right side
    443,285.76x = 161,894,021,585.59
  5. Step 5: Solve for x
    x = 161,894,021,585.59/443,285.76
  6. Step 6: Final answer
    x = 365,213.68

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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.