Home / 283,449.78-391,161.75-156,125.07

Finding the Fourth Proportional to 283,449.78, 391,161.75 and 156,125.07

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Solution

The fourth proportional to 283,449.78, 391,161.75 and 156,125.07 is: 215,453.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,449.78 : 391,161.75 = 156,125.07 : x
  2. Step 2: Convert to fraction form
    283,449.78/391,161.75 = 156,125.07/x
  3. Step 3: Cross multiply
    283,449.78x = 391,161.75 × 156,125.07
  4. Step 4: Simplify right side
    283,449.78x = 61,070,155,600.07
  5. Step 5: Solve for x
    x = 61,070,155,600.07/283,449.78
  6. Step 6: Final answer
    x = 215,453.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.