Home / 215,082.45-322,666.74-120,447.21

Finding the Fourth Proportional to 215,082.45, 322,666.74 and 120,447.21

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Solution

The fourth proportional to 215,082.45, 322,666.74 and 120,447.21 is: 180,694.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,082.45 : 322,666.74 = 120,447.21 : x
  2. Step 2: Convert to fraction form
    215,082.45/322,666.74 = 120,447.21/x
  3. Step 3: Cross multiply
    215,082.45x = 322,666.74 × 120,447.21
  4. Step 4: Simplify right side
    215,082.45x = 38,864,309,802.80
  5. Step 5: Solve for x
    x = 38,864,309,802.80/215,082.45
  6. Step 6: Final answer
    x = 180,694.94

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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.