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Finding the Fourth Proportional to 353,064.82, 487,464.05 and 271,247.33

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Solution

The fourth proportional to 353,064.82, 487,464.05 and 271,247.33 is: 374,501.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,064.82 : 487,464.05 = 271,247.33 : x
  2. Step 2: Convert to fraction form
    353,064.82/487,464.05 = 271,247.33/x
  3. Step 3: Cross multiply
    353,064.82x = 487,464.05 × 271,247.33
  4. Step 4: Simplify right side
    353,064.82x = 132,223,318,239.93
  5. Step 5: Solve for x
    x = 132,223,318,239.93/353,064.82
  6. Step 6: Final answer
    x = 374,501.54

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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.