Home / 243,922.40-366,039.80-131,680.79

Finding the Fourth Proportional to 243,922.40, 366,039.80 and 131,680.79

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Solution

The fourth proportional to 243,922.40, 366,039.80 and 131,680.79 is: 197,605.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,922.40 : 366,039.80 = 131,680.79 : x
  2. Step 2: Convert to fraction form
    243,922.40/366,039.80 = 131,680.79/x
  3. Step 3: Cross multiply
    243,922.40x = 366,039.80 × 131,680.79
  4. Step 4: Simplify right side
    243,922.40x = 48,200,407,546.84
  5. Step 5: Solve for x
    x = 48,200,407,546.84/243,922.40
  6. Step 6: Final answer
    x = 197,605.50

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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.