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Finding the Fourth Proportional to 121,351.50, 182,027.25 and 38,245.50

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Solution

The fourth proportional to 121,351.50, 182,027.25 and 38,245.50 is: 57,368.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,351.50 : 182,027.25 = 38,245.50 : x
  2. Step 2: Convert to fraction form
    121,351.50/182,027.25 = 38,245.50/x
  3. Step 3: Cross multiply
    121,351.50x = 182,027.25 × 38,245.50
  4. Step 4: Simplify right side
    121,351.50x = 6,961,723,189.88
  5. Step 5: Solve for x
    x = 6,961,723,189.88/121,351.50
  6. Step 6: Final answer
    x = 57,368.25

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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.