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Finding the Fourth Proportional to 215,759.52, 297,741.29 and 135,230.54

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Solution

The fourth proportional to 215,759.52, 297,741.29 and 135,230.54 is: 186,613.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,759.52 : 297,741.29 = 135,230.54 : x
  2. Step 2: Convert to fraction form
    215,759.52/297,741.29 = 135,230.54/x
  3. Step 3: Cross multiply
    215,759.52x = 297,741.29 × 135,230.54
  4. Step 4: Simplify right side
    215,759.52x = 40,263,713,262.14
  5. Step 5: Solve for x
    x = 40,263,713,262.14/215,759.52
  6. Step 6: Final answer
    x = 186,613.84

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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.