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Finding the Fourth Proportional to 381,827.47, 526,891.08 and 220,692.96

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Solution

The fourth proportional to 381,827.47, 526,891.08 and 220,692.96 is: 304,538.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,827.47 : 526,891.08 = 220,692.96 : x
  2. Step 2: Convert to fraction form
    381,827.47/526,891.08 = 220,692.96/x
  3. Step 3: Cross multiply
    381,827.47x = 526,891.08 × 220,692.96
  4. Step 4: Simplify right side
    381,827.47x = 116,281,152,042.80
  5. Step 5: Solve for x
    x = 116,281,152,042.80/381,827.47
  6. Step 6: Final answer
    x = 304,538.47

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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.