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Finding the Fourth Proportional to 221,515.56, 332,156.58 and 96,710.76

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Solution

The fourth proportional to 221,515.56, 332,156.58 and 96,710.76 is: 145,015.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,515.56 : 332,156.58 = 96,710.76 : x
  2. Step 2: Convert to fraction form
    221,515.56/332,156.58 = 96,710.76/x
  3. Step 3: Cross multiply
    221,515.56x = 332,156.58 × 96,710.76
  4. Step 4: Simplify right side
    221,515.56x = 32,123,115,290.80
  5. Step 5: Solve for x
    x = 32,123,115,290.80/221,515.56
  6. Step 6: Final answer
    x = 145,015.16

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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.