Home / 259,966.40-389,650.68-119,429.76

Finding the Fourth Proportional to 259,966.40, 389,650.68 and 119,429.76

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Solution

The fourth proportional to 259,966.40, 389,650.68 and 119,429.76 is: 179,007.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,966.40 : 389,650.68 = 119,429.76 : x
  2. Step 2: Convert to fraction form
    259,966.40/389,650.68 = 119,429.76/x
  3. Step 3: Cross multiply
    259,966.40x = 389,650.68 × 119,429.76
  4. Step 4: Simplify right side
    259,966.40x = 46,535,887,196.24
  5. Step 5: Solve for x
    x = 46,535,887,196.24/259,966.40
  6. Step 6: Final answer
    x = 179,007.31

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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.