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Finding the Fourth Proportional to 221,492.60, 332,238.90 and 219,524.30

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Solution

The fourth proportional to 221,492.60, 332,238.90 and 219,524.30 is: 329,286.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,492.60 : 332,238.90 = 219,524.30 : x
  2. Step 2: Convert to fraction form
    221,492.60/332,238.90 = 219,524.30/x
  3. Step 3: Cross multiply
    221,492.60x = 332,238.90 × 219,524.30
  4. Step 4: Simplify right side
    221,492.60x = 72,934,511,955.27
  5. Step 5: Solve for x
    x = 72,934,511,955.27/221,492.60
  6. Step 6: Final answer
    x = 329,286.45

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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.