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Finding the Fourth Proportional to 407,166.88, 561,891.72 and 225,882.40

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Solution

The fourth proportional to 407,166.88, 561,891.72 and 225,882.40 is: 311,718.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,166.88 : 561,891.72 = 225,882.40 : x
  2. Step 2: Convert to fraction form
    407,166.88/561,891.72 = 225,882.40/x
  3. Step 3: Cross multiply
    407,166.88x = 561,891.72 × 225,882.40
  4. Step 4: Simplify right side
    407,166.88x = 126,921,450,253.73
  5. Step 5: Solve for x
    x = 126,921,450,253.73/407,166.88
  6. Step 6: Final answer
    x = 311,718.50

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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.