Home / 215,519.39-323,278.87-57,743.54

Finding the Fourth Proportional to 215,519.39, 323,278.87 and 57,743.54

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Solution

The fourth proportional to 215,519.39, 323,278.87 and 57,743.54 is: 86,615.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,519.39 : 323,278.87 = 57,743.54 : x
  2. Step 2: Convert to fraction form
    215,519.39/323,278.87 = 57,743.54/x
  3. Step 3: Cross multiply
    215,519.39x = 323,278.87 × 57,743.54
  4. Step 4: Simplify right side
    215,519.39x = 18,667,266,361.00
  5. Step 5: Solve for x
    x = 18,667,266,361.00/215,519.39
  6. Step 6: Final answer
    x = 86,615.25

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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.