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Finding the Fourth Proportional to 206,576.88, 309,787.56 and 162,720.24

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Solution

The fourth proportional to 206,576.88, 309,787.56 and 162,720.24 is: 244,019.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,576.88 : 309,787.56 = 162,720.24 : x
  2. Step 2: Convert to fraction form
    206,576.88/309,787.56 = 162,720.24/x
  3. Step 3: Cross multiply
    206,576.88x = 309,787.56 × 162,720.24
  4. Step 4: Simplify right side
    206,576.88x = 50,408,706,112.21
  5. Step 5: Solve for x
    x = 50,408,706,112.21/206,576.88
  6. Step 6: Final answer
    x = 244,019.11

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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.