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Finding the Fourth Proportional to 225,601.20, 338,790.60 and 218,602.80

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Solution

The fourth proportional to 225,601.20, 338,790.60 and 218,602.80 is: 328,280.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,601.20 : 338,790.60 = 218,602.80 : x
  2. Step 2: Convert to fraction form
    225,601.20/338,790.60 = 218,602.80/x
  3. Step 3: Cross multiply
    225,601.20x = 338,790.60 × 218,602.80
  4. Step 4: Simplify right side
    225,601.20x = 74,060,573,773.68
  5. Step 5: Solve for x
    x = 74,060,573,773.68/225,601.20
  6. Step 6: Final answer
    x = 328,280.94

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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.