Home / 259,021.03-387,814.13-132,388.57

Finding the Fourth Proportional to 259,021.03, 387,814.13 and 132,388.57

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Solution

The fourth proportional to 259,021.03, 387,814.13 and 132,388.57 is: 198,216.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,021.03 : 387,814.13 = 132,388.57 : x
  2. Step 2: Convert to fraction form
    259,021.03/387,814.13 = 132,388.57/x
  3. Step 3: Cross multiply
    259,021.03x = 387,814.13 × 132,388.57
  4. Step 4: Simplify right side
    259,021.03x = 51,342,158,096.49
  5. Step 5: Solve for x
    x = 51,342,158,096.49/259,021.03
  6. Step 6: Final answer
    x = 198,216.18

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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.