Home / 206,380.15-309,570.29-136,243.06

Finding the Fourth Proportional to 206,380.15, 309,570.29 and 136,243.06

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Solution

The fourth proportional to 206,380.15, 309,570.29 and 136,243.06 is: 204,364.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,380.15 : 309,570.29 = 136,243.06 : x
  2. Step 2: Convert to fraction form
    206,380.15/309,570.29 = 136,243.06/x
  3. Step 3: Cross multiply
    206,380.15x = 309,570.29 × 136,243.06
  4. Step 4: Simplify right side
    206,380.15x = 42,176,803,594.69
  5. Step 5: Solve for x
    x = 42,176,803,594.69/206,380.15
  6. Step 6: Final answer
    x = 204,364.63

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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.