Home / 406,791.18-561,371.82-225,502.65

Finding the Fourth Proportional to 406,791.18, 561,371.82 and 225,502.65

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Solution

The fourth proportional to 406,791.18, 561,371.82 and 225,502.65 is: 311,193.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,791.18 : 561,371.82 = 225,502.65 : x
  2. Step 2: Convert to fraction form
    406,791.18/561,371.82 = 225,502.65/x
  3. Step 3: Cross multiply
    406,791.18x = 561,371.82 × 225,502.65
  4. Step 4: Simplify right side
    406,791.18x = 126,590,832,199.69
  5. Step 5: Solve for x
    x = 126,590,832,199.69/406,791.18
  6. Step 6: Final answer
    x = 311,193.65

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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.