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Finding the Fourth Proportional to 207,769.80, 312,000.30 and 114,342.60

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Solution

The fourth proportional to 207,769.80, 312,000.30 and 114,342.60 is: 171,704.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,769.80 : 312,000.30 = 114,342.60 : x
  2. Step 2: Convert to fraction form
    207,769.80/312,000.30 = 114,342.60/x
  3. Step 3: Cross multiply
    207,769.80x = 312,000.30 × 114,342.60
  4. Step 4: Simplify right side
    207,769.80x = 35,674,925,502.78
  5. Step 5: Solve for x
    x = 35,674,925,502.78/207,769.80
  6. Step 6: Final answer
    x = 171,704.10

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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.