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Finding the Fourth Proportional to 406,379.41, 561,077.61 and 253,650.26

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Solution

The fourth proportional to 406,379.41, 561,077.61 and 253,650.26 is: 350,208.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,379.41 : 561,077.61 = 253,650.26 : x
  2. Step 2: Convert to fraction form
    406,379.41/561,077.61 = 253,650.26/x
  3. Step 3: Cross multiply
    406,379.41x = 561,077.61 × 253,650.26
  4. Step 4: Simplify right side
    406,379.41x = 142,317,481,656.68
  5. Step 5: Solve for x
    x = 142,317,481,656.68/406,379.41
  6. Step 6: Final answer
    x = 350,208.40

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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.