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Finding the Fourth Proportional to 353,207.52, 487,531.44 and 202,404.96

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Solution

The fourth proportional to 353,207.52, 487,531.44 and 202,404.96 is: 279,379.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,207.52 : 487,531.44 = 202,404.96 : x
  2. Step 2: Convert to fraction form
    353,207.52/487,531.44 = 202,404.96/x
  3. Step 3: Cross multiply
    353,207.52x = 487,531.44 × 202,404.96
  4. Step 4: Simplify right side
    353,207.52x = 98,678,781,611.94
  5. Step 5: Solve for x
    x = 98,678,781,611.94/353,207.52
  6. Step 6: Final answer
    x = 279,379.05

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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.