Home / 307,961.46-425,116.38-187,141.56

Finding the Fourth Proportional to 307,961.46, 425,116.38 and 187,141.56

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Solution

The fourth proportional to 307,961.46, 425,116.38 and 187,141.56 is: 258,334.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,961.46 : 425,116.38 = 187,141.56 : x
  2. Step 2: Convert to fraction form
    307,961.46/425,116.38 = 187,141.56/x
  3. Step 3: Cross multiply
    307,961.46x = 425,116.38 × 187,141.56
  4. Step 4: Simplify right side
    307,961.46x = 79,556,942,534.75
  5. Step 5: Solve for x
    x = 79,556,942,534.75/307,961.46
  6. Step 6: Final answer
    x = 258,334.09

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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.