Home / 272,228.20-408,731.10-206,132.20

Finding the Fourth Proportional to 272,228.20, 408,731.10 and 206,132.20

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Solution

The fourth proportional to 272,228.20, 408,731.10 and 206,132.20 is: 309,492.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,228.20 : 408,731.10 = 206,132.20 : x
  2. Step 2: Convert to fraction form
    272,228.20/408,731.10 = 206,132.20/x
  3. Step 3: Cross multiply
    272,228.20x = 408,731.10 × 206,132.20
  4. Step 4: Simplify right side
    272,228.20x = 84,252,640,851.42
  5. Step 5: Solve for x
    x = 84,252,640,851.42/272,228.20
  6. Step 6: Final answer
    x = 309,492.70

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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.