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Finding the Fourth Proportional to 207,777.58, 312,229.14 and 113,077.78

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Solution

The fourth proportional to 207,777.58, 312,229.14 and 113,077.78 is: 169,922.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,777.58 : 312,229.14 = 113,077.78 : x
  2. Step 2: Convert to fraction form
    207,777.58/312,229.14 = 113,077.78/x
  3. Step 3: Cross multiply
    207,777.58x = 312,229.14 × 113,077.78
  4. Step 4: Simplify right side
    207,777.58x = 35,306,178,002.51
  5. Step 5: Solve for x
    x = 35,306,178,002.51/207,777.58
  6. Step 6: Final answer
    x = 169,922.94

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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.