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Finding the Fourth Proportional to 434.84, 652.28 and 110.21

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Solution

The fourth proportional to 434.84, 652.28 and 110.21 is: 165.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.84 : 652.28 = 110.21 : x
  2. Step 2: Convert to fraction form
    434.84/652.28 = 110.21/x
  3. Step 3: Cross multiply
    434.84x = 652.28 × 110.21
  4. Step 4: Simplify right side
    434.84x = 71,887.78
  5. Step 5: Solve for x
    x = 71,887.78/434.84
  6. Step 6: Final answer
    x = 165.32

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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.