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Finding the Fourth Proportional to 165.15, 246.48 and 151.38

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Solution

The fourth proportional to 165.15, 246.48 and 151.38 is: 225.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    165.15 : 246.48 = 151.38 : x
  2. Step 2: Convert to fraction form
    165.15/246.48 = 151.38/x
  3. Step 3: Cross multiply
    165.15x = 246.48 × 151.38
  4. Step 4: Simplify right side
    165.15x = 37,312.14
  5. Step 5: Solve for x
    x = 37,312.14/165.15
  6. Step 6: Final answer
    x = 225.93

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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.