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Finding the Fourth Proportional to 644.74, 967.18 and 234.07

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Solution

The fourth proportional to 644.74, 967.18 and 234.07 is: 351.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    644.74 : 967.18 = 234.07 : x
  2. Step 2: Convert to fraction form
    644.74/967.18 = 234.07/x
  3. Step 3: Cross multiply
    644.74x = 967.18 × 234.07
  4. Step 4: Simplify right side
    644.74x = 226,382.99
  5. Step 5: Solve for x
    x = 226,382.99/644.74
  6. Step 6: Final answer
    x = 351.13

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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.