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Finding the Fourth Proportional to 381,896.94, 526,948.29 and 220,692.90

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Solution

The fourth proportional to 381,896.94, 526,948.29 and 220,692.90 is: 304,516.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,896.94 : 526,948.29 = 220,692.90 : x
  2. Step 2: Convert to fraction form
    381,896.94/526,948.29 = 220,692.90/x
  3. Step 3: Cross multiply
    381,896.94x = 526,948.29 × 220,692.90
  4. Step 4: Simplify right side
    381,896.94x = 116,293,746,270.14
  5. Step 5: Solve for x
    x = 116,293,746,270.14/381,896.94
  6. Step 6: Final answer
    x = 304,516.05

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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.