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Finding the Fourth Proportional to 406,868.03, 561,476.88 and 225,575.30

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Solution

The fourth proportional to 406,868.03, 561,476.88 and 225,575.30 is: 311,293.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,868.03 : 561,476.88 = 225,575.30 : x
  2. Step 2: Convert to fraction form
    406,868.03/561,476.88 = 225,575.30/x
  3. Step 3: Cross multiply
    406,868.03x = 561,476.88 × 225,575.30
  4. Step 4: Simplify right side
    406,868.03x = 126,655,315,649.06
  5. Step 5: Solve for x
    x = 126,655,315,649.06/406,868.03
  6. Step 6: Final answer
    x = 311,293.36

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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.