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Finding the Fourth Proportional to 406,899, 561,527.37 and 225,618.57

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Solution

The fourth proportional to 406,899, 561,527.37 and 225,618.57 is: 311,357.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,899 : 561,527.37 = 225,618.57 : x
  2. Step 2: Convert to fraction form
    406,899/561,527.37 = 225,618.57/x
  3. Step 3: Cross multiply
    406,899x = 561,527.37 × 225,618.57
  4. Step 4: Simplify right side
    406,899x = 126,691,002,235.26
  5. Step 5: Solve for x
    x = 126,691,002,235.26/406,899
  6. Step 6: Final answer
    x = 311,357.37

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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.