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Finding the Fourth Proportional to 617,251.72, 925,951.56 and 217,810

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Solution

The fourth proportional to 617,251.72, 925,951.56 and 217,810 is: 326,741.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,251.72 : 925,951.56 = 217,810 : x
  2. Step 2: Convert to fraction form
    617,251.72/925,951.56 = 217,810/x
  3. Step 3: Cross multiply
    617,251.72x = 925,951.56 × 217,810
  4. Step 4: Simplify right side
    617,251.72x = 201,681,509,283.60
  5. Step 5: Solve for x
    x = 201,681,509,283.60/617,251.72
  6. Step 6: Final answer
    x = 326,741.11

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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.