Home / 381,200.13-571,835.57-272,111.76

Finding the Fourth Proportional to 381,200.13, 571,835.57 and 272,111.76

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Solution

The fourth proportional to 381,200.13, 571,835.57 and 272,111.76 is: 408,192.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,200.13 : 571,835.57 = 272,111.76 : x
  2. Step 2: Convert to fraction form
    381,200.13/571,835.57 = 272,111.76/x
  3. Step 3: Cross multiply
    381,200.13x = 571,835.57 × 272,111.76
  4. Step 4: Simplify right side
    381,200.13x = 155,603,182,022.74
  5. Step 5: Solve for x
    x = 155,603,182,022.74/381,200.13
  6. Step 6: Final answer
    x = 408,192.89

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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.