Home / 330,082.49-455,793.07-209,437.85

Finding the Fourth Proportional to 330,082.49, 455,793.07 and 209,437.85

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Solution

The fourth proportional to 330,082.49, 455,793.07 and 209,437.85 is: 289,201.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,082.49 : 455,793.07 = 209,437.85 : x
  2. Step 2: Convert to fraction form
    330,082.49/455,793.07 = 209,437.85/x
  3. Step 3: Cross multiply
    330,082.49x = 455,793.07 × 209,437.85
  4. Step 4: Simplify right side
    330,082.49x = 95,460,320,625.70
  5. Step 5: Solve for x
    x = 95,460,320,625.70/330,082.49
  6. Step 6: Final answer
    x = 289,201.41

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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.