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Finding the Fourth Proportional to 217,627.70, 326,441.55 and 201,881.30

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Solution

The fourth proportional to 217,627.70, 326,441.55 and 201,881.30 is: 302,821.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,627.70 : 326,441.55 = 201,881.30 : x
  2. Step 2: Convert to fraction form
    217,627.70/326,441.55 = 201,881.30/x
  3. Step 3: Cross multiply
    217,627.70x = 326,441.55 × 201,881.30
  4. Step 4: Simplify right side
    217,627.70x = 65,902,444,488.02
  5. Step 5: Solve for x
    x = 65,902,444,488.02/217,627.70
  6. Step 6: Final answer
    x = 302,821.95

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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.