Home / 217,682.46-300,399.30-122,186.70

Finding the Fourth Proportional to 217,682.46, 300,399.30 and 122,186.70

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Solution

The fourth proportional to 217,682.46, 300,399.30 and 122,186.70 is: 168,616.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,682.46 : 300,399.30 = 122,186.70 : x
  2. Step 2: Convert to fraction form
    217,682.46/300,399.30 = 122,186.70/x
  3. Step 3: Cross multiply
    217,682.46x = 300,399.30 × 122,186.70
  4. Step 4: Simplify right side
    217,682.46x = 36,704,799,149.31
  5. Step 5: Solve for x
    x = 36,704,799,149.31/217,682.46
  6. Step 6: Final answer
    x = 168,616.25

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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.