Home / 443,365.38-665,141.48-143,822.57

Finding the Fourth Proportional to 443,365.38, 665,141.48 and 143,822.57

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Solution

The fourth proportional to 443,365.38, 665,141.48 and 143,822.57 is: 215,764.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,365.38 : 665,141.48 = 143,822.57 : x
  2. Step 2: Convert to fraction form
    443,365.38/665,141.48 = 143,822.57/x
  3. Step 3: Cross multiply
    443,365.38x = 665,141.48 × 143,822.57
  4. Step 4: Simplify right side
    443,365.38x = 95,662,353,022.38
  5. Step 5: Solve for x
    x = 95,662,353,022.38/443,365.38
  6. Step 6: Final answer
    x = 215,764.15

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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.