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Finding the Fourth Proportional to 434.55, 652.10 and 229.28

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Solution

The fourth proportional to 434.55, 652.10 and 229.28 is: 344.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.55 : 652.10 = 229.28 : x
  2. Step 2: Convert to fraction form
    434.55/652.10 = 229.28/x
  3. Step 3: Cross multiply
    434.55x = 652.10 × 229.28
  4. Step 4: Simplify right side
    434.55x = 149,509.08
  5. Step 5: Solve for x
    x = 149,509.08/434.55
  6. Step 6: Final answer
    x = 344.05

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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.