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Finding the Fourth Proportional to 618.57, 927.30 and 310.26

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Solution

The fourth proportional to 618.57, 927.30 and 310.26 is: 465.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.57 : 927.30 = 310.26 : x
  2. Step 2: Convert to fraction form
    618.57/927.30 = 310.26/x
  3. Step 3: Cross multiply
    618.57x = 927.30 × 310.26
  4. Step 4: Simplify right side
    618.57x = 287,704.10
  5. Step 5: Solve for x
    x = 287,704.10/618.57
  6. Step 6: Final answer
    x = 465.11

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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.