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Finding the Fourth Proportional to 434.86, 652.24 and 110.21

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Solution

The fourth proportional to 434.86, 652.24 and 110.21 is: 165.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.86 : 652.24 = 110.21 : x
  2. Step 2: Convert to fraction form
    434.86/652.24 = 110.21/x
  3. Step 3: Cross multiply
    434.86x = 652.24 × 110.21
  4. Step 4: Simplify right side
    434.86x = 71,883.37
  5. Step 5: Solve for x
    x = 71,883.37/434.86
  6. Step 6: Final answer
    x = 165.30

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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.