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Finding the Fourth Proportional to 560.42, 772.97 and 339.44

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Solution

The fourth proportional to 560.42, 772.97 and 339.44 is: 468.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.42 : 772.97 = 339.44 : x
  2. Step 2: Convert to fraction form
    560.42/772.97 = 339.44/x
  3. Step 3: Cross multiply
    560.42x = 772.97 × 339.44
  4. Step 4: Simplify right side
    560.42x = 262,376.68
  5. Step 5: Solve for x
    x = 262,376.68/560.42
  6. Step 6: Final answer
    x = 468.18

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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.