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Finding the Fourth Proportional to 334.88, 500.88 and 320

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Solution

The fourth proportional to 334.88, 500.88 and 320 is: 478.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.88 : 500.88 = 320 : x
  2. Step 2: Convert to fraction form
    334.88/500.88 = 320/x
  3. Step 3: Cross multiply
    334.88x = 500.88 × 320
  4. Step 4: Simplify right side
    334.88x = 160,281.60
  5. Step 5: Solve for x
    x = 160,281.60/334.88
  6. Step 6: Final answer
    x = 478.62

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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.