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Finding the Fourth Proportional to 608.91, 913.12 and 233.61

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Solution

The fourth proportional to 608.91, 913.12 and 233.61 is: 350.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.91 : 913.12 = 233.61 : x
  2. Step 2: Convert to fraction form
    608.91/913.12 = 233.61/x
  3. Step 3: Cross multiply
    608.91x = 913.12 × 233.61
  4. Step 4: Simplify right side
    608.91x = 213,315.75
  5. Step 5: Solve for x
    x = 213,315.75/608.91
  6. Step 6: Final answer
    x = 350.32

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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.