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Finding the Fourth Proportional to 303,257.76, 418,229.84 and 242,806.37

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Solution

The fourth proportional to 303,257.76, 418,229.84 and 242,806.37 is: 334,859.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,257.76 : 418,229.84 = 242,806.37 : x
  2. Step 2: Convert to fraction form
    303,257.76/418,229.84 = 242,806.37/x
  3. Step 3: Cross multiply
    303,257.76x = 418,229.84 × 242,806.37
  4. Step 4: Simplify right side
    303,257.76x = 101,548,865,970.90
  5. Step 5: Solve for x
    x = 101,548,865,970.90/303,257.76
  6. Step 6: Final answer
    x = 334,859.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.