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Finding the Fourth Proportional to 381,463.28, 526,384.56 and 226,387.82

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Solution

The fourth proportional to 381,463.28, 526,384.56 and 226,387.82 is: 312,394.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,463.28 : 526,384.56 = 226,387.82 : x
  2. Step 2: Convert to fraction form
    381,463.28/526,384.56 = 226,387.82/x
  3. Step 3: Cross multiply
    381,463.28x = 526,384.56 × 226,387.82
  4. Step 4: Simplify right side
    381,463.28x = 119,167,053,911.54
  5. Step 5: Solve for x
    x = 119,167,053,911.54/381,463.28
  6. Step 6: Final answer
    x = 312,394.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.