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Finding the Fourth Proportional to 236.28, 354.57 and 159.30

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Solution

The fourth proportional to 236.28, 354.57 and 159.30 is: 239.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.28 : 354.57 = 159.30 : x
  2. Step 2: Convert to fraction form
    236.28/354.57 = 159.30/x
  3. Step 3: Cross multiply
    236.28x = 354.57 × 159.30
  4. Step 4: Simplify right side
    236.28x = 56,483.00
  5. Step 5: Solve for x
    x = 56,483.00/236.28
  6. Step 6: Final answer
    x = 239.05

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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.