Home / 259,424.28-389,148.09-79,496.76

Finding the Fourth Proportional to 259,424.28, 389,148.09 and 79,496.76

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Solution

The fourth proportional to 259,424.28, 389,148.09 and 79,496.76 is: 119,248.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,424.28 : 389,148.09 = 79,496.76 : x
  2. Step 2: Convert to fraction form
    259,424.28/389,148.09 = 79,496.76/x
  3. Step 3: Cross multiply
    259,424.28x = 389,148.09 × 79,496.76
  4. Step 4: Simplify right side
    259,424.28x = 30,936,012,315.19
  5. Step 5: Solve for x
    x = 30,936,012,315.19/259,424.28
  6. Step 6: Final answer
    x = 119,248.72

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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.