Home / 259,954.38-389,632.68-119,417.76

Finding the Fourth Proportional to 259,954.38, 389,632.68 and 119,417.76

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Solution

The fourth proportional to 259,954.38, 389,632.68 and 119,417.76 is: 178,989.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,954.38 : 389,632.68 = 119,417.76 : x
  2. Step 2: Convert to fraction form
    259,954.38/389,632.68 = 119,417.76/x
  3. Step 3: Cross multiply
    259,954.38x = 389,632.68 × 119,417.76
  4. Step 4: Simplify right side
    259,954.38x = 46,529,061,868.40
  5. Step 5: Solve for x
    x = 46,529,061,868.40/259,954.38
  6. Step 6: Final answer
    x = 178,989.34

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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.