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Finding the Fourth Proportional to 551,632.60, 827,679.30 and 177,770.20

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Solution

The fourth proportional to 551,632.60, 827,679.30 and 177,770.20 is: 266,729.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,632.60 : 827,679.30 = 177,770.20 : x
  2. Step 2: Convert to fraction form
    551,632.60/827,679.30 = 177,770.20/x
  3. Step 3: Cross multiply
    551,632.60x = 827,679.30 × 177,770.20
  4. Step 4: Simplify right side
    551,632.60x = 147,136,714,696.86
  5. Step 5: Solve for x
    x = 147,136,714,696.86/551,632.60
  6. Step 6: Final answer
    x = 266,729.55

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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.