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Finding the Fourth Proportional to 400.32, 599.52 and 339.52

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Solution

The fourth proportional to 400.32, 599.52 and 339.52 is: 508.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.32 : 599.52 = 339.52 : x
  2. Step 2: Convert to fraction form
    400.32/599.52 = 339.52/x
  3. Step 3: Cross multiply
    400.32x = 599.52 × 339.52
  4. Step 4: Simplify right side
    400.32x = 203,549.03
  5. Step 5: Solve for x
    x = 203,549.03/400.32
  6. Step 6: Final answer
    x = 508.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.