Home / 204,821.20-307,231.80-173,328.40

Finding the Fourth Proportional to 204,821.20, 307,231.80 and 173,328.40

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Solution

The fourth proportional to 204,821.20, 307,231.80 and 173,328.40 is: 259,992.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,821.20 : 307,231.80 = 173,328.40 : x
  2. Step 2: Convert to fraction form
    204,821.20/307,231.80 = 173,328.40/x
  3. Step 3: Cross multiply
    204,821.20x = 307,231.80 × 173,328.40
  4. Step 4: Simplify right side
    204,821.20x = 53,251,996,323.12
  5. Step 5: Solve for x
    x = 53,251,996,323.12/204,821.20
  6. Step 6: Final answer
    x = 259,992.60

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1.5x scale

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.