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Finding the Fourth Proportional to 217,455.48, 326,213.64 and 67,706.64

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Solution

The fourth proportional to 217,455.48, 326,213.64 and 67,706.64 is: 101,569.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,455.48 : 326,213.64 = 67,706.64 : x
  2. Step 2: Convert to fraction form
    217,455.48/326,213.64 = 67,706.64/x
  3. Step 3: Cross multiply
    217,455.48x = 326,213.64 × 67,706.64
  4. Step 4: Simplify right side
    217,455.48x = 22,086,829,486.57
  5. Step 5: Solve for x
    x = 22,086,829,486.57/217,455.48
  6. Step 6: Final answer
    x = 101,569.43

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1.5x scale

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.