Home / 205,026.80-307,540.20-172,367.60

Finding the Fourth Proportional to 205,026.80, 307,540.20 and 172,367.60

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Solution

The fourth proportional to 205,026.80, 307,540.20 and 172,367.60 is: 258,551.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,026.80 : 307,540.20 = 172,367.60 : x
  2. Step 2: Convert to fraction form
    205,026.80/307,540.20 = 172,367.60/x
  3. Step 3: Cross multiply
    205,026.80x = 307,540.20 × 172,367.60
  4. Step 4: Simplify right side
    205,026.80x = 53,009,966,177.52
  5. Step 5: Solve for x
    x = 53,009,966,177.52/205,026.80
  6. Step 6: Final answer
    x = 258,551.40

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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.