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Finding the Fourth Proportional to 236.51, 354.67 and 106.50

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Solution

The fourth proportional to 236.51, 354.67 and 106.50 is: 159.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.51 : 354.67 = 106.50 : x
  2. Step 2: Convert to fraction form
    236.51/354.67 = 106.50/x
  3. Step 3: Cross multiply
    236.51x = 354.67 × 106.50
  4. Step 4: Simplify right side
    236.51x = 37,774.08
  5. Step 5: Solve for x
    x = 37,774.08/236.51
  6. Step 6: Final answer
    x = 159.72

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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.