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Finding the Fourth Proportional to 356.63, 491.77 and 244.61

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Solution

The fourth proportional to 356.63, 491.77 and 244.61 is: 337.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.63 : 491.77 = 244.61 : x
  2. Step 2: Convert to fraction form
    356.63/491.77 = 244.61/x
  3. Step 3: Cross multiply
    356.63x = 491.77 × 244.61
  4. Step 4: Simplify right side
    356.63x = 120,291.86
  5. Step 5: Solve for x
    x = 120,291.86/356.63
  6. Step 6: Final answer
    x = 337.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.