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Finding the Fourth Proportional to 217,100.20, 325,650.30 and 177,701.80

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Solution

The fourth proportional to 217,100.20, 325,650.30 and 177,701.80 is: 266,552.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,100.20 : 325,650.30 = 177,701.80 : x
  2. Step 2: Convert to fraction form
    217,100.20/325,650.30 = 177,701.80/x
  3. Step 3: Cross multiply
    217,100.20x = 325,650.30 × 177,701.80
  4. Step 4: Simplify right side
    217,100.20x = 57,868,644,480.54
  5. Step 5: Solve for x
    x = 57,868,644,480.54/217,100.20
  6. Step 6: Final answer
    x = 266,552.70

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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.