Home / 259,619.70-389,429.55-159,455.10

Finding the Fourth Proportional to 259,619.70, 389,429.55 and 159,455.10

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Solution

The fourth proportional to 259,619.70, 389,429.55 and 159,455.10 is: 239,182.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,619.70 : 389,429.55 = 159,455.10 : x
  2. Step 2: Convert to fraction form
    259,619.70/389,429.55 = 159,455.10/x
  3. Step 3: Cross multiply
    259,619.70x = 389,429.55 × 159,455.10
  4. Step 4: Simplify right side
    259,619.70x = 62,096,527,838.21
  5. Step 5: Solve for x
    x = 62,096,527,838.21/259,619.70
  6. Step 6: Final answer
    x = 239,182.65

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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.