Home / 276,819.85-415,082.13-143,369.11

Finding the Fourth Proportional to 276,819.85, 415,082.13 and 143,369.11

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Solution

The fourth proportional to 276,819.85, 415,082.13 and 143,369.11 is: 214,977.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,819.85 : 415,082.13 = 143,369.11 : x
  2. Step 2: Convert to fraction form
    276,819.85/415,082.13 = 143,369.11/x
  3. Step 3: Cross multiply
    276,819.85x = 415,082.13 × 143,369.11
  4. Step 4: Simplify right side
    276,819.85x = 59,509,955,555.00
  5. Step 5: Solve for x
    x = 59,509,955,555.00/276,819.85
  6. Step 6: Final answer
    x = 214,977.20

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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.