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Finding the Fourth Proportional to 485,102.26, 669,441.96 and 270,249.98

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Solution

The fourth proportional to 485,102.26, 669,441.96 and 270,249.98 is: 372,945.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,102.26 : 669,441.96 = 270,249.98 : x
  2. Step 2: Convert to fraction form
    485,102.26/669,441.96 = 270,249.98/x
  3. Step 3: Cross multiply
    485,102.26x = 669,441.96 × 270,249.98
  4. Step 4: Simplify right side
    485,102.26x = 180,916,676,301.16
  5. Step 5: Solve for x
    x = 180,916,676,301.16/485,102.26
  6. Step 6: Final answer
    x = 372,945.44

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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.