Home / 361,847.28-542,667.24-121,935

Finding the Fourth Proportional to 361,847.28, 542,667.24 and 121,935

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Solution

The fourth proportional to 361,847.28, 542,667.24 and 121,935 is: 182,867.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,847.28 : 542,667.24 = 121,935 : x
  2. Step 2: Convert to fraction form
    361,847.28/542,667.24 = 121,935/x
  3. Step 3: Cross multiply
    361,847.28x = 542,667.24 × 121,935
  4. Step 4: Simplify right side
    361,847.28x = 66,170,129,909.40
  5. Step 5: Solve for x
    x = 66,170,129,909.40/361,847.28
  6. Step 6: Final answer
    x = 182,867.56

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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.