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Finding the Fourth Proportional to 400.30, 597.74 and 342.44

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Solution

The fourth proportional to 400.30, 597.74 and 342.44 is: 511.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.30 : 597.74 = 342.44 : x
  2. Step 2: Convert to fraction form
    400.30/597.74 = 342.44/x
  3. Step 3: Cross multiply
    400.30x = 597.74 × 342.44
  4. Step 4: Simplify right side
    400.30x = 204,690.87
  5. Step 5: Solve for x
    x = 204,690.87/400.30
  6. Step 6: Final answer
    x = 511.34

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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.