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Finding the Fourth Proportional to 706.94, 1,060.07 and 219.99

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Solution

The fourth proportional to 706.94, 1,060.07 and 219.99 is: 329.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    706.94 : 1,060.07 = 219.99 : x
  2. Step 2: Convert to fraction form
    706.94/1,060.07 = 219.99/x
  3. Step 3: Cross multiply
    706.94x = 1,060.07 × 219.99
  4. Step 4: Simplify right side
    706.94x = 233,203.70
  5. Step 5: Solve for x
    x = 233,203.70/706.94
  6. Step 6: Final answer
    x = 329.88

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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.