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Finding the Fourth Proportional to 436.90, 652.37 and 344.56

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Solution

The fourth proportional to 436.90, 652.37 and 344.56 is: 514.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.90 : 652.37 = 344.56 : x
  2. Step 2: Convert to fraction form
    436.90/652.37 = 344.56/x
  3. Step 3: Cross multiply
    436.90x = 652.37 × 344.56
  4. Step 4: Simplify right side
    436.90x = 224,780.61
  5. Step 5: Solve for x
    x = 224,780.61/436.90
  6. Step 6: Final answer
    x = 514.49

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.