Home / 217,520.18-300,179.89-122,028.92

Finding the Fourth Proportional to 217,520.18, 300,179.89 and 122,028.92

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Solution

The fourth proportional to 217,520.18, 300,179.89 and 122,028.92 is: 168,401.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,520.18 : 300,179.89 = 122,028.92 : x
  2. Step 2: Convert to fraction form
    217,520.18/300,179.89 = 122,028.92/x
  3. Step 3: Cross multiply
    217,520.18x = 300,179.89 × 122,028.92
  4. Step 4: Simplify right side
    217,520.18x = 36,630,628,685.40
  5. Step 5: Solve for x
    x = 36,630,628,685.40/217,520.18
  6. Step 6: Final answer
    x = 168,401.06

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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.