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Finding the Fourth Proportional to 207,370.56, 310,990.92 and 67,100.16

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Solution

The fourth proportional to 207,370.56, 310,990.92 and 67,100.16 is: 100,629.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,370.56 : 310,990.92 = 67,100.16 : x
  2. Step 2: Convert to fraction form
    207,370.56/310,990.92 = 67,100.16/x
  3. Step 3: Cross multiply
    207,370.56x = 310,990.92 × 67,100.16
  4. Step 4: Simplify right side
    207,370.56x = 20,867,540,490.55
  5. Step 5: Solve for x
    x = 20,867,540,490.55/207,370.56
  6. Step 6: Final answer
    x = 100,629.23

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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.