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Finding the Fourth Proportional to 164.63, 246.58 and 135.68

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Solution

The fourth proportional to 164.63, 246.58 and 135.68 is: 203.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.63 : 246.58 = 135.68 : x
  2. Step 2: Convert to fraction form
    164.63/246.58 = 135.68/x
  3. Step 3: Cross multiply
    164.63x = 246.58 × 135.68
  4. Step 4: Simplify right side
    164.63x = 33,454.40
  5. Step 5: Solve for x
    x = 33,454.40/164.63
  6. Step 6: Final answer
    x = 203.21

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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.