Home / 217,521.30-300,181.70-120,726.96

Finding the Fourth Proportional to 217,521.30, 300,181.70 and 120,726.96

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Solution

The fourth proportional to 217,521.30, 300,181.70 and 120,726.96 is: 166,604.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,521.30 : 300,181.70 = 120,726.96 : x
  2. Step 2: Convert to fraction form
    217,521.30/300,181.70 = 120,726.96/x
  3. Step 3: Cross multiply
    217,521.30x = 300,181.70 × 120,726.96
  4. Step 4: Simplify right side
    217,521.30x = 36,240,022,585.68
  5. Step 5: Solve for x
    x = 36,240,022,585.68/217,521.30
  6. Step 6: Final answer
    x = 166,604.48

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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.