Home / 381,815.06-526,874.04-220,680.55

Finding the Fourth Proportional to 381,815.06, 526,874.04 and 220,680.55

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Solution

The fourth proportional to 381,815.06, 526,874.04 and 220,680.55 is: 304,521.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,815.06 : 526,874.04 = 220,680.55 : x
  2. Step 2: Convert to fraction form
    381,815.06/526,874.04 = 220,680.55/x
  3. Step 3: Cross multiply
    381,815.06x = 526,874.04 × 220,680.55
  4. Step 4: Simplify right side
    381,815.06x = 116,270,850,293.55
  5. Step 5: Solve for x
    x = 116,270,850,293.55/381,815.06
  6. Step 6: Final answer
    x = 304,521.38

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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.