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Finding the Fourth Proportional to 612.27, 845.67 and 446.22

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Solution

The fourth proportional to 612.27, 845.67 and 446.22 is: 616.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.27 : 845.67 = 446.22 : x
  2. Step 2: Convert to fraction form
    612.27/845.67 = 446.22/x
  3. Step 3: Cross multiply
    612.27x = 845.67 × 446.22
  4. Step 4: Simplify right side
    612.27x = 377,354.87
  5. Step 5: Solve for x
    x = 377,354.87/612.27
  6. Step 6: Final answer
    x = 616.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.