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Finding the Fourth Proportional to 406,675.67, 561,212.48 and 225,399.30

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Solution

The fourth proportional to 406,675.67, 561,212.48 and 225,399.30 is: 311,051.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,675.67 : 561,212.48 = 225,399.30 : x
  2. Step 2: Convert to fraction form
    406,675.67/561,212.48 = 225,399.30/x
  3. Step 3: Cross multiply
    406,675.67x = 561,212.48 × 225,399.30
  4. Step 4: Simplify right side
    406,675.67x = 126,496,900,143.26
  5. Step 5: Solve for x
    x = 126,496,900,143.26/406,675.67
  6. Step 6: Final answer
    x = 311,051.06

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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.