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Finding the Fourth Proportional to 395.52, 544.50 and 340.98

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Solution

The fourth proportional to 395.52, 544.50 and 340.98 is: 469.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.52 : 544.50 = 340.98 : x
  2. Step 2: Convert to fraction form
    395.52/544.50 = 340.98/x
  3. Step 3: Cross multiply
    395.52x = 544.50 × 340.98
  4. Step 4: Simplify right side
    395.52x = 185,663.61
  5. Step 5: Solve for x
    x = 185,663.61/395.52
  6. Step 6: Final answer
    x = 469.42

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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.