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Finding the Fourth Proportional to 222,718.80, 333,640.80 and 206,972.40

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Solution

The fourth proportional to 222,718.80, 333,640.80 and 206,972.40 is: 310,052.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,718.80 : 333,640.80 = 206,972.40 : x
  2. Step 2: Convert to fraction form
    222,718.80/333,640.80 = 206,972.40/x
  3. Step 3: Cross multiply
    222,718.80x = 333,640.80 × 206,972.40
  4. Step 4: Simplify right side
    222,718.80x = 69,054,437,113.92
  5. Step 5: Solve for x
    x = 69,054,437,113.92/222,718.80
  6. Step 6: Final answer
    x = 310,052.12

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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.