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Finding the Fourth Proportional to 381,816.54, 526,876.08 and 220,682.03

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Solution

The fourth proportional to 381,816.54, 526,876.08 and 220,682.03 is: 304,523.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,816.54 : 526,876.08 = 220,682.03 : x
  2. Step 2: Convert to fraction form
    381,816.54/526,876.08 = 220,682.03/x
  3. Step 3: Cross multiply
    381,816.54x = 526,876.08 × 220,682.03
  4. Step 4: Simplify right side
    381,816.54x = 116,272,080,258.46
  5. Step 5: Solve for x
    x = 116,272,080,258.46/381,816.54
  6. Step 6: Final answer
    x = 304,523.42

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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.