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Finding the Fourth Proportional to 354,728.70, 532,093.05 and 221,759.10

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Solution

The fourth proportional to 354,728.70, 532,093.05 and 221,759.10 is: 332,638.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,728.70 : 532,093.05 = 221,759.10 : x
  2. Step 2: Convert to fraction form
    354,728.70/532,093.05 = 221,759.10/x
  3. Step 3: Cross multiply
    354,728.70x = 532,093.05 × 221,759.10
  4. Step 4: Simplify right side
    354,728.70x = 117,996,475,884.26
  5. Step 5: Solve for x
    x = 117,996,475,884.26/354,728.70
  6. Step 6: Final answer
    x = 332,638.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.