Home / 381,823.80-526,886.06-220,689.30

Finding the Fourth Proportional to 381,823.80, 526,886.06 and 220,689.30

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Solution

The fourth proportional to 381,823.80, 526,886.06 and 220,689.30 is: 304,533.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,823.80 : 526,886.06 = 220,689.30 : x
  2. Step 2: Convert to fraction form
    381,823.80/526,886.06 = 220,689.30/x
  3. Step 3: Cross multiply
    381,823.80x = 526,886.06 × 220,689.30
  4. Step 4: Simplify right side
    381,823.80x = 116,278,115,761.16
  5. Step 5: Solve for x
    x = 116,278,115,761.16/381,823.80
  6. Step 6: Final answer
    x = 304,533.44

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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.