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Finding the Fourth Proportional to 617,286.87, 926,040.87 and 218,159.37

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Solution

The fourth proportional to 617,286.87, 926,040.87 and 218,159.37 is: 327,278.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,286.87 : 926,040.87 = 218,159.37 : x
  2. Step 2: Convert to fraction form
    617,286.87/926,040.87 = 218,159.37/x
  3. Step 3: Cross multiply
    617,286.87x = 926,040.87 × 218,159.37
  4. Step 4: Simplify right side
    617,286.87x = 202,024,492,793.45
  5. Step 5: Solve for x
    x = 202,024,492,793.45/617,286.87
  6. Step 6: Final answer
    x = 327,278.13

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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.