Home / 243,091.20-364,634.40-76,879.20

Finding the Fourth Proportional to 243,091.20, 364,634.40 and 76,879.20

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Solution

The fourth proportional to 243,091.20, 364,634.40 and 76,879.20 is: 115,318.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,091.20 : 364,634.40 = 76,879.20 : x
  2. Step 2: Convert to fraction form
    243,091.20/364,634.40 = 76,879.20/x
  3. Step 3: Cross multiply
    243,091.20x = 364,634.40 × 76,879.20
  4. Step 4: Simplify right side
    243,091.20x = 28,032,800,964.48
  5. Step 5: Solve for x
    x = 28,032,800,964.48/243,091.20
  6. Step 6: Final answer
    x = 115,318.04

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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.