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Finding the Fourth Proportional to 392.84, 587.78 and 244.62

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Solution

The fourth proportional to 392.84, 587.78 and 244.62 is: 366.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    392.84 : 587.78 = 244.62 : x
  2. Step 2: Convert to fraction form
    392.84/587.78 = 244.62/x
  3. Step 3: Cross multiply
    392.84x = 587.78 × 244.62
  4. Step 4: Simplify right side
    392.84x = 143,782.74
  5. Step 5: Solve for x
    x = 143,782.74/392.84
  6. Step 6: Final answer
    x = 366.01

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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.