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Finding the Fourth Proportional to 242.58, 362.49 and 164.90

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Solution

The fourth proportional to 242.58, 362.49 and 164.90 is: 246.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.58 : 362.49 = 164.90 : x
  2. Step 2: Convert to fraction form
    242.58/362.49 = 164.90/x
  3. Step 3: Cross multiply
    242.58x = 362.49 × 164.90
  4. Step 4: Simplify right side
    242.58x = 59,774.89
  5. Step 5: Solve for x
    x = 59,774.89/242.58
  6. Step 6: Final answer
    x = 246.41

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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.