Home / 218,946.20-328,565.10-100,556.60

Finding the Fourth Proportional to 218,946.20, 328,565.10 and 100,556.60

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Solution

The fourth proportional to 218,946.20, 328,565.10 and 100,556.60 is: 150,901.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,946.20 : 328,565.10 = 100,556.60 : x
  2. Step 2: Convert to fraction form
    218,946.20/328,565.10 = 100,556.60/x
  3. Step 3: Cross multiply
    218,946.20x = 328,565.10 × 100,556.60
  4. Step 4: Simplify right side
    218,946.20x = 33,039,389,334.66
  5. Step 5: Solve for x
    x = 33,039,389,334.66/218,946.20
  6. Step 6: Final answer
    x = 150,901.86

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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.