Home / 259,555.30-389,145.97-159,508.69

Finding the Fourth Proportional to 259,555.30, 389,145.97 and 159,508.69

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Solution

The fourth proportional to 259,555.30, 389,145.97 and 159,508.69 is: 239,148.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,555.30 : 389,145.97 = 159,508.69 : x
  2. Step 2: Convert to fraction form
    259,555.30/389,145.97 = 159,508.69/x
  3. Step 3: Cross multiply
    259,555.30x = 389,145.97 × 159,508.69
  4. Step 4: Simplify right side
    259,555.30x = 62,072,163,893.48
  5. Step 5: Solve for x
    x = 62,072,163,893.48/259,555.30
  6. Step 6: Final answer
    x = 239,148.13

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1.5x scale

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.