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Finding the Fourth Proportional to 229.84, 345.93 and 207.48

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Solution

The fourth proportional to 229.84, 345.93 and 207.48 is: 312.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    229.84 : 345.93 = 207.48 : x
  2. Step 2: Convert to fraction form
    229.84/345.93 = 207.48/x
  3. Step 3: Cross multiply
    229.84x = 345.93 × 207.48
  4. Step 4: Simplify right side
    229.84x = 71,773.56
  5. Step 5: Solve for x
    x = 71,773.56/229.84
  6. Step 6: Final answer
    x = 312.28

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.