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Finding the Fourth Proportional to 614.21, 921.71 and 224.18

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Solution

The fourth proportional to 614.21, 921.71 and 224.18 is: 336.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.21 : 921.71 = 224.18 : x
  2. Step 2: Convert to fraction form
    614.21/921.71 = 224.18/x
  3. Step 3: Cross multiply
    614.21x = 921.71 × 224.18
  4. Step 4: Simplify right side
    614.21x = 206,623.78
  5. Step 5: Solve for x
    x = 206,623.78/614.21
  6. Step 6: Final answer
    x = 336.41

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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.