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Finding the Fourth Proportional to 177,478.20, 266,217.30 and 163,961.40

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Solution

The fourth proportional to 177,478.20, 266,217.30 and 163,961.40 is: 245,942.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,478.20 : 266,217.30 = 163,961.40 : x
  2. Step 2: Convert to fraction form
    177,478.20/266,217.30 = 163,961.40/x
  3. Step 3: Cross multiply
    177,478.20x = 266,217.30 × 163,961.40
  4. Step 4: Simplify right side
    177,478.20x = 43,649,361,212.22
  5. Step 5: Solve for x
    x = 43,649,361,212.22/177,478.20
  6. Step 6: Final answer
    x = 245,942.10

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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.