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Finding the Fourth Proportional to 617,641.97, 926,537.70 and 218,201

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Solution

The fourth proportional to 617,641.97, 926,537.70 and 218,201 is: 327,327.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,641.97 : 926,537.70 = 218,201 : x
  2. Step 2: Convert to fraction form
    617,641.97/926,537.70 = 218,201/x
  3. Step 3: Cross multiply
    617,641.97x = 926,537.70 × 218,201
  4. Step 4: Simplify right side
    617,641.97x = 202,171,452,677.70
  5. Step 5: Solve for x
    x = 202,171,452,677.70/617,641.97
  6. Step 6: Final answer
    x = 327,327.91

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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.