Home / 215,431.38-297,290.25-119,936.16

Finding the Fourth Proportional to 215,431.38, 297,290.25 and 119,936.16

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Solution

The fourth proportional to 215,431.38, 297,290.25 and 119,936.16 is: 165,509.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,431.38 : 297,290.25 = 119,936.16 : x
  2. Step 2: Convert to fraction form
    215,431.38/297,290.25 = 119,936.16/x
  3. Step 3: Cross multiply
    215,431.38x = 297,290.25 × 119,936.16
  4. Step 4: Simplify right side
    215,431.38x = 35,655,850,990.44
  5. Step 5: Solve for x
    x = 35,655,850,990.44/215,431.38
  6. Step 6: Final answer
    x = 165,509.09

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1.5x scale

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.