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Finding the Fourth Proportional to 221,376.60, 332,000.10 and 79,205.40

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Solution

The fourth proportional to 221,376.60, 332,000.10 and 79,205.40 is: 118,784.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,376.60 : 332,000.10 = 79,205.40 : x
  2. Step 2: Convert to fraction form
    221,376.60/332,000.10 = 79,205.40/x
  3. Step 3: Cross multiply
    221,376.60x = 332,000.10 × 79,205.40
  4. Step 4: Simplify right side
    221,376.60x = 26,296,200,720.54
  5. Step 5: Solve for x
    x = 26,296,200,720.54/221,376.60
  6. Step 6: Final answer
    x = 118,784.92

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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.