Home / 407,245.60-561,972.18-225,957.04

Finding the Fourth Proportional to 407,245.60, 561,972.18 and 225,957.04

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Solution

The fourth proportional to 407,245.60, 561,972.18 and 225,957.04 is: 311,805.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,245.60 : 561,972.18 = 225,957.04 : x
  2. Step 2: Convert to fraction form
    407,245.60/561,972.18 = 225,957.04/x
  3. Step 3: Cross multiply
    407,245.60x = 561,972.18 × 225,957.04
  4. Step 4: Simplify right side
    407,245.60x = 126,981,570,355.15
  5. Step 5: Solve for x
    x = 126,981,570,355.15/407,245.60
  6. Step 6: Final answer
    x = 311,805.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.