Home / 381,724.72-572,513.20-115,422.82

Finding the Fourth Proportional to 381,724.72, 572,513.20 and 115,422.82

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Solution

The fourth proportional to 381,724.72, 572,513.20 and 115,422.82 is: 173,111.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,724.72 : 572,513.20 = 115,422.82 : x
  2. Step 2: Convert to fraction form
    381,724.72/572,513.20 = 115,422.82/x
  3. Step 3: Cross multiply
    381,724.72x = 572,513.20 × 115,422.82
  4. Step 4: Simplify right side
    381,724.72x = 66,081,088,031.22
  5. Step 5: Solve for x
    x = 66,081,088,031.22/381,724.72
  6. Step 6: Final answer
    x = 173,111.89

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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.