Home / 259,931.22-389,009.70-217,858.83

Finding the Fourth Proportional to 259,931.22, 389,009.70 and 217,858.83

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Solution

The fourth proportional to 259,931.22, 389,009.70 and 217,858.83 is: 326,044.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,931.22 : 389,009.70 = 217,858.83 : x
  2. Step 2: Convert to fraction form
    259,931.22/389,009.70 = 217,858.83/x
  3. Step 3: Cross multiply
    259,931.22x = 389,009.70 × 217,858.83
  4. Step 4: Simplify right side
    259,931.22x = 84,749,198,100.65
  5. Step 5: Solve for x
    x = 84,749,198,100.65/259,931.22
  6. Step 6: Final answer
    x = 326,044.71

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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.