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Finding the Fourth Proportional to 215,448.30, 322,404.45 and 136,600.30

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Solution

The fourth proportional to 215,448.30, 322,404.45 and 136,600.30 is: 204,413.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,448.30 : 322,404.45 = 136,600.30 : x
  2. Step 2: Convert to fraction form
    215,448.30/322,404.45 = 136,600.30/x
  3. Step 3: Cross multiply
    215,448.30x = 322,404.45 × 136,600.30
  4. Step 4: Simplify right side
    215,448.30x = 44,040,544,591.34
  5. Step 5: Solve for x
    x = 44,040,544,591.34/215,448.30
  6. Step 6: Final answer
    x = 204,413.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.