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Finding the Fourth Proportional to 354.64, 532.02 and 162.28

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Solution

The fourth proportional to 354.64, 532.02 and 162.28 is: 243.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.64 : 532.02 = 162.28 : x
  2. Step 2: Convert to fraction form
    354.64/532.02 = 162.28/x
  3. Step 3: Cross multiply
    354.64x = 532.02 × 162.28
  4. Step 4: Simplify right side
    354.64x = 86,336.21
  5. Step 5: Solve for x
    x = 86,336.21/354.64
  6. Step 6: Final answer
    x = 243.45

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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.