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Finding the Fourth Proportional to 388.93, 580.55 and 337.93

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Solution

The fourth proportional to 388.93, 580.55 and 337.93 is: 504.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    388.93 : 580.55 = 337.93 : x
  2. Step 2: Convert to fraction form
    388.93/580.55 = 337.93/x
  3. Step 3: Cross multiply
    388.93x = 580.55 × 337.93
  4. Step 4: Simplify right side
    388.93x = 196,185.26
  5. Step 5: Solve for x
    x = 196,185.26/388.93
  6. Step 6: Final answer
    x = 504.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.