Home / 283,625.72-391,403.49-156,301.31

Finding the Fourth Proportional to 283,625.72, 391,403.49 and 156,301.31

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Solution

The fourth proportional to 283,625.72, 391,403.49 and 156,301.31 is: 215,695.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,625.72 : 391,403.49 = 156,301.31 : x
  2. Step 2: Convert to fraction form
    283,625.72/391,403.49 = 156,301.31/x
  3. Step 3: Cross multiply
    283,625.72x = 391,403.49 × 156,301.31
  4. Step 4: Simplify right side
    283,625.72x = 61,176,879,204.08
  5. Step 5: Solve for x
    x = 61,176,879,204.08/283,625.72
  6. Step 6: Final answer
    x = 215,695.81

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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.