Home / 406,747.63-561,338.75-225,467.20

Finding the Fourth Proportional to 406,747.63, 561,338.75 and 225,467.20

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Solution

The fourth proportional to 406,747.63, 561,338.75 and 225,467.20 is: 311,159.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,747.63 : 561,338.75 = 225,467.20 : x
  2. Step 2: Convert to fraction form
    406,747.63/561,338.75 = 225,467.20/x
  3. Step 3: Cross multiply
    406,747.63x = 561,338.75 × 225,467.20
  4. Step 4: Simplify right side
    406,747.63x = 126,563,472,279.97
  5. Step 5: Solve for x
    x = 126,563,472,279.97/406,747.63
  6. Step 6: Final answer
    x = 311,159.71

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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.