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Finding the Fourth Proportional to 434.48, 652.61 and 369.57

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Solution

The fourth proportional to 434.48, 652.61 and 369.57 is: 555.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.48 : 652.61 = 369.57 : x
  2. Step 2: Convert to fraction form
    434.48/652.61 = 369.57/x
  3. Step 3: Cross multiply
    434.48x = 652.61 × 369.57
  4. Step 4: Simplify right side
    434.48x = 241,183.23
  5. Step 5: Solve for x
    x = 241,183.23/434.48
  6. Step 6: Final answer
    x = 555.11

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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.