Home / 381,723.72-572,511.70-115,421.82

Finding the Fourth Proportional to 381,723.72, 572,511.70 and 115,421.82

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Solution

The fourth proportional to 381,723.72, 572,511.70 and 115,421.82 is: 173,110.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,723.72 : 572,511.70 = 115,421.82 : x
  2. Step 2: Convert to fraction form
    381,723.72/572,511.70 = 115,421.82/x
  3. Step 3: Cross multiply
    381,723.72x = 572,511.70 × 115,421.82
  4. Step 4: Simplify right side
    381,723.72x = 66,080,342,385.29
  5. Step 5: Solve for x
    x = 66,080,342,385.29/381,723.72
  6. Step 6: Final answer
    x = 173,110.39

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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.