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Finding the Fourth Proportional to 221,657.65, 332,334.59 and 79,499.88

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Solution

The fourth proportional to 221,657.65, 332,334.59 and 79,499.88 is: 119,195.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,657.65 : 332,334.59 = 79,499.88 : x
  2. Step 2: Convert to fraction form
    221,657.65/332,334.59 = 79,499.88/x
  3. Step 3: Cross multiply
    221,657.65x = 332,334.59 × 79,499.88
  4. Step 4: Simplify right side
    221,657.65x = 26,420,559,627.35
  5. Step 5: Solve for x
    x = 26,420,559,627.35/221,657.65
  6. Step 6: Final answer
    x = 119,195.34

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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.