Home / 320,082.38-441,339-218,168.18

Finding the Fourth Proportional to 320,082.38, 441,339 and 218,168.18

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Solution

The fourth proportional to 320,082.38, 441,339 and 218,168.18 is: 300,816.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,082.38 : 441,339 = 218,168.18 : x
  2. Step 2: Convert to fraction form
    320,082.38/441,339 = 218,168.18/x
  3. Step 3: Cross multiply
    320,082.38x = 441,339 × 218,168.18
  4. Step 4: Simplify right side
    320,082.38x = 96,286,126,393.02
  5. Step 5: Solve for x
    x = 96,286,126,393.02/320,082.38
  6. Step 6: Final answer
    x = 300,816.70

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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.