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Finding the Fourth Proportional to 392.03, 540.91 and 244.61

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Solution

The fourth proportional to 392.03, 540.91 and 244.61 is: 337.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    392.03 : 540.91 = 244.61 : x
  2. Step 2: Convert to fraction form
    392.03/540.91 = 244.61/x
  3. Step 3: Cross multiply
    392.03x = 540.91 × 244.61
  4. Step 4: Simplify right side
    392.03x = 132,312.00
  5. Step 5: Solve for x
    x = 132,312.00/392.03
  6. Step 6: Final answer
    x = 337.50

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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.