Home / 381,826.47-526,889.70-220,691.96

Finding the Fourth Proportional to 381,826.47, 526,889.70 and 220,691.96

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Solution

The fourth proportional to 381,826.47, 526,889.70 and 220,691.96 is: 304,537.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,826.47 : 526,889.70 = 220,691.96 : x
  2. Step 2: Convert to fraction form
    381,826.47/526,889.70 = 220,691.96/x
  3. Step 3: Cross multiply
    381,826.47x = 526,889.70 × 220,691.96
  4. Step 4: Simplify right side
    381,826.47x = 116,280,317,962.36
  5. Step 5: Solve for x
    x = 116,280,317,962.36/381,826.47
  6. Step 6: Final answer
    x = 304,537.08

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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.