Home / 205,724.20-309,047.10-197,327.40

Finding the Fourth Proportional to 205,724.20, 309,047.10 and 197,327.40

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Solution

The fourth proportional to 205,724.20, 309,047.10 and 197,327.40 is: 296,433.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,724.20 : 309,047.10 = 197,327.40 : x
  2. Step 2: Convert to fraction form
    205,724.20/309,047.10 = 197,327.40/x
  3. Step 3: Cross multiply
    205,724.20x = 309,047.10 × 197,327.40
  4. Step 4: Simplify right side
    205,724.20x = 60,983,460,720.54
  5. Step 5: Solve for x
    x = 60,983,460,720.54/205,724.20
  6. Step 6: Final answer
    x = 296,433.09

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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.