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Finding the Fourth Proportional to 333.28, 493.12 and 332.32

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Solution

The fourth proportional to 333.28, 493.12 and 332.32 is: 491.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.28 : 493.12 = 332.32 : x
  2. Step 2: Convert to fraction form
    333.28/493.12 = 332.32/x
  3. Step 3: Cross multiply
    333.28x = 493.12 × 332.32
  4. Step 4: Simplify right side
    333.28x = 163,873.64
  5. Step 5: Solve for x
    x = 163,873.64/333.28
  6. Step 6: Final answer
    x = 491.70

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.