Home / 206,549.06-309,758.79-66,276.50

Finding the Fourth Proportional to 206,549.06, 309,758.79 and 66,276.50

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Solution

The fourth proportional to 206,549.06, 309,758.79 and 66,276.50 is: 99,393.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,549.06 : 309,758.79 = 66,276.50 : x
  2. Step 2: Convert to fraction form
    206,549.06/309,758.79 = 66,276.50/x
  3. Step 3: Cross multiply
    206,549.06x = 309,758.79 × 66,276.50
  4. Step 4: Simplify right side
    206,549.06x = 20,529,728,445.44
  5. Step 5: Solve for x
    x = 20,529,728,445.44/206,549.06
  6. Step 6: Final answer
    x = 99,393.96

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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.