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Finding the Fourth Proportional to 152.83, 228.75 and 109.09

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Solution

The fourth proportional to 152.83, 228.75 and 109.09 is: 163.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    152.83 : 228.75 = 109.09 : x
  2. Step 2: Convert to fraction form
    152.83/228.75 = 109.09/x
  3. Step 3: Cross multiply
    152.83x = 228.75 × 109.09
  4. Step 4: Simplify right side
    152.83x = 24,954.34
  5. Step 5: Solve for x
    x = 24,954.34/152.83
  6. Step 6: Final answer
    x = 163.28

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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.