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Finding the Fourth Proportional to 207,004.40, 310,446.50 and 80,616.40

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Solution

The fourth proportional to 207,004.40, 310,446.50 and 80,616.40 is: 120,901.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,004.40 : 310,446.50 = 80,616.40 : x
  2. Step 2: Convert to fraction form
    207,004.40/310,446.50 = 80,616.40/x
  3. Step 3: Cross multiply
    207,004.40x = 310,446.50 × 80,616.40
  4. Step 4: Simplify right side
    207,004.40x = 25,027,079,222.60
  5. Step 5: Solve for x
    x = 25,027,079,222.60/207,004.40
  6. Step 6: Final answer
    x = 120,901.19

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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.