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Finding the Fourth Proportional to 218,292.15, 327,449.16 and 78,050.79

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Solution

The fourth proportional to 218,292.15, 327,449.16 and 78,050.79 is: 117,080.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,292.15 : 327,449.16 = 78,050.79 : x
  2. Step 2: Convert to fraction form
    218,292.15/327,449.16 = 78,050.79/x
  3. Step 3: Cross multiply
    218,292.15x = 327,449.16 × 78,050.79
  4. Step 4: Simplify right side
    218,292.15x = 25,557,665,622.84
  5. Step 5: Solve for x
    x = 25,557,665,622.84/218,292.15
  6. Step 6: Final answer
    x = 117,080.09

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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.