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Finding the Fourth Proportional to 406,958.45, 561,592.01 and 225,669.81

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Solution

The fourth proportional to 406,958.45, 561,592.01 and 225,669.81 is: 311,418.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,958.45 : 561,592.01 = 225,669.81 : x
  2. Step 2: Convert to fraction form
    406,958.45/561,592.01 = 225,669.81/x
  3. Step 3: Cross multiply
    406,958.45x = 561,592.01 × 225,669.81
  4. Step 4: Simplify right side
    406,958.45x = 126,734,362,758.39
  5. Step 5: Solve for x
    x = 126,734,362,758.39/406,958.45
  6. Step 6: Final answer
    x = 311,418.43

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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.