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Finding the Fourth Proportional to 339.74, 507.36 and 274.82

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Solution

The fourth proportional to 339.74, 507.36 and 274.82 is: 410.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    339.74 : 507.36 = 274.82 : x
  2. Step 2: Convert to fraction form
    339.74/507.36 = 274.82/x
  3. Step 3: Cross multiply
    339.74x = 507.36 × 274.82
  4. Step 4: Simplify right side
    339.74x = 139,432.68
  5. Step 5: Solve for x
    x = 139,432.68/339.74
  6. Step 6: Final answer
    x = 410.41

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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.