Home / 443,434.56-664,979.20-143,842.64

Finding the Fourth Proportional to 443,434.56, 664,979.20 and 143,842.64

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Solution

The fourth proportional to 443,434.56, 664,979.20 and 143,842.64 is: 215,707.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,434.56 : 664,979.20 = 143,842.64 : x
  2. Step 2: Convert to fraction form
    443,434.56/664,979.20 = 143,842.64/x
  3. Step 3: Cross multiply
    443,434.56x = 664,979.20 × 143,842.64
  4. Step 4: Simplify right side
    443,434.56x = 95,652,363,673.09
  5. Step 5: Solve for x
    x = 95,652,363,673.09/443,434.56
  6. Step 6: Final answer
    x = 215,707.96

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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.