Home / 339,945.45-510,082.20-239,890.20

Finding the Fourth Proportional to 339,945.45, 510,082.20 and 239,890.20

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Solution

The fourth proportional to 339,945.45, 510,082.20 and 239,890.20 is: 359,951.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,945.45 : 510,082.20 = 239,890.20 : x
  2. Step 2: Convert to fraction form
    339,945.45/510,082.20 = 239,890.20/x
  3. Step 3: Cross multiply
    339,945.45x = 510,082.20 × 239,890.20
  4. Step 4: Simplify right side
    339,945.45x = 122,363,720,974.44
  5. Step 5: Solve for x
    x = 122,363,720,974.44/339,945.45
  6. Step 6: Final answer
    x = 359,951.05

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1.5x scale

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.