Home / 389,999.80-584,708.10-165,176.20

Finding the Fourth Proportional to 389,999.80, 584,708.10 and 165,176.20

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Solution

The fourth proportional to 389,999.80, 584,708.10 and 165,176.20 is: 247,640.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,999.80 : 584,708.10 = 165,176.20 : x
  2. Step 2: Convert to fraction form
    389,999.80/584,708.10 = 165,176.20/x
  3. Step 3: Cross multiply
    389,999.80x = 584,708.10 × 165,176.20
  4. Step 4: Simplify right side
    389,999.80x = 96,579,862,067.22
  5. Step 5: Solve for x
    x = 96,579,862,067.22/389,999.80
  6. Step 6: Final answer
    x = 247,640.80

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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.