Home / 381,289.43-571,237.04-178,513.53

Finding the Fourth Proportional to 381,289.43, 571,237.04 and 178,513.53

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Solution

The fourth proportional to 381,289.43, 571,237.04 and 178,513.53 is: 267,443.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,289.43 : 571,237.04 = 178,513.53 : x
  2. Step 2: Convert to fraction form
    381,289.43/571,237.04 = 178,513.53/x
  3. Step 3: Cross multiply
    381,289.43x = 571,237.04 × 178,513.53
  4. Step 4: Simplify right side
    381,289.43x = 101,973,538,781.30
  5. Step 5: Solve for x
    x = 101,973,538,781.30/381,289.43
  6. Step 6: Final answer
    x = 267,443.92

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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.