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Finding the Fourth Proportional to 253,375.68, 380,019.72 and 75,835.08

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Solution

The fourth proportional to 253,375.68, 380,019.72 and 75,835.08 is: 113,739.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,375.68 : 380,019.72 = 75,835.08 : x
  2. Step 2: Convert to fraction form
    253,375.68/380,019.72 = 75,835.08/x
  3. Step 3: Cross multiply
    253,375.68x = 380,019.72 × 75,835.08
  4. Step 4: Simplify right side
    253,375.68x = 28,818,825,867.78
  5. Step 5: Solve for x
    x = 28,818,825,867.78/253,375.68
  6. Step 6: Final answer
    x = 113,739.51

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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.