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Finding the Fourth Proportional to 368.31, 552.40 and 124.83

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Solution

The fourth proportional to 368.31, 552.40 and 124.83 is: 187.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.31 : 552.40 = 124.83 : x
  2. Step 2: Convert to fraction form
    368.31/552.40 = 124.83/x
  3. Step 3: Cross multiply
    368.31x = 552.40 × 124.83
  4. Step 4: Simplify right side
    368.31x = 68,956.09
  5. Step 5: Solve for x
    x = 68,956.09/368.31
  6. Step 6: Final answer
    x = 187.22

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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.