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Finding the Fourth Proportional to 381,851.49, 526,896.53 and 220,675.44

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Solution

The fourth proportional to 381,851.49, 526,896.53 and 220,675.44 is: 304,498.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,851.49 : 526,896.53 = 220,675.44 : x
  2. Step 2: Convert to fraction form
    381,851.49/526,896.53 = 220,675.44/x
  3. Step 3: Cross multiply
    381,851.49x = 526,896.53 × 220,675.44
  4. Step 4: Simplify right side
    381,851.49x = 116,273,123,259.42
  5. Step 5: Solve for x
    x = 116,273,123,259.42/381,851.49
  6. Step 6: Final answer
    x = 304,498.28

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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.