Home / 443,273.78-664,718.39-243,534.26

Finding the Fourth Proportional to 443,273.78, 664,718.39 and 243,534.26

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Solution

The fourth proportional to 443,273.78, 664,718.39 and 243,534.26 is: 365,195.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,273.78 : 664,718.39 = 243,534.26 : x
  2. Step 2: Convert to fraction form
    443,273.78/664,718.39 = 243,534.26/x
  3. Step 3: Cross multiply
    443,273.78x = 664,718.39 × 243,534.26
  4. Step 4: Simplify right side
    443,273.78x = 161,881,701,217.04
  5. Step 5: Solve for x
    x = 161,881,701,217.04/443,273.78
  6. Step 6: Final answer
    x = 365,195.75

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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.