Home / 445,031.43-667,588.19-145,513.55

Finding the Fourth Proportional to 445,031.43, 667,588.19 and 145,513.55

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Solution

The fourth proportional to 445,031.43, 667,588.19 and 145,513.55 is: 218,283.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,031.43 : 667,588.19 = 145,513.55 : x
  2. Step 2: Convert to fraction form
    445,031.43/667,588.19 = 145,513.55/x
  3. Step 3: Cross multiply
    445,031.43x = 667,588.19 × 145,513.55
  4. Step 4: Simplify right side
    445,031.43x = 97,143,123,399.47
  5. Step 5: Solve for x
    x = 97,143,123,399.47/445,031.43
  6. Step 6: Final answer
    x = 218,283.74

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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.