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Finding the Fourth Proportional to 207,955.70, 311,933.55 and 192,209.30

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Solution

The fourth proportional to 207,955.70, 311,933.55 and 192,209.30 is: 288,313.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,955.70 : 311,933.55 = 192,209.30 : x
  2. Step 2: Convert to fraction form
    207,955.70/311,933.55 = 192,209.30/x
  3. Step 3: Cross multiply
    207,955.70x = 311,933.55 × 192,209.30
  4. Step 4: Simplify right side
    207,955.70x = 59,956,529,292.02
  5. Step 5: Solve for x
    x = 59,956,529,292.02/207,955.70
  6. Step 6: Final answer
    x = 288,313.95

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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.