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Finding the Fourth Proportional to 344.55, 517.02 and 207.93

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Solution

The fourth proportional to 344.55, 517.02 and 207.93 is: 312.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.55 : 517.02 = 207.93 : x
  2. Step 2: Convert to fraction form
    344.55/517.02 = 207.93/x
  3. Step 3: Cross multiply
    344.55x = 517.02 × 207.93
  4. Step 4: Simplify right side
    344.55x = 107,503.97
  5. Step 5: Solve for x
    x = 107,503.97/344.55
  6. Step 6: Final answer
    x = 312.01

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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.