Home / 217,716.65-300,432.38-122,204.89

Finding the Fourth Proportional to 217,716.65, 300,432.38 and 122,204.89

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Solution

The fourth proportional to 217,716.65, 300,432.38 and 122,204.89 is: 168,633.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,716.65 : 300,432.38 = 122,204.89 : x
  2. Step 2: Convert to fraction form
    217,716.65/300,432.38 = 122,204.89/x
  3. Step 3: Cross multiply
    217,716.65x = 300,432.38 × 122,204.89
  4. Step 4: Simplify right side
    217,716.65x = 36,714,305,504.77
  5. Step 5: Solve for x
    x = 36,714,305,504.77/217,716.65
  6. Step 6: Final answer
    x = 168,633.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.