Home / 206,474.10-309,941.55-192,938.10

Finding the Fourth Proportional to 206,474.10, 309,941.55 and 192,938.10

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Solution

The fourth proportional to 206,474.10, 309,941.55 and 192,938.10 is: 289,622.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,474.10 : 309,941.55 = 192,938.10 : x
  2. Step 2: Convert to fraction form
    206,474.10/309,941.55 = 192,938.10/x
  3. Step 3: Cross multiply
    206,474.10x = 309,941.55 × 192,938.10
  4. Step 4: Simplify right side
    206,474.10x = 59,799,533,768.06
  5. Step 5: Solve for x
    x = 59,799,533,768.06/206,474.10
  6. Step 6: Final answer
    x = 289,622.45

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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.