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Finding the Fourth Proportional to 626.76, 938.70 and 337.50

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Solution

The fourth proportional to 626.76, 938.70 and 337.50 is: 505.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.76 : 938.70 = 337.50 : x
  2. Step 2: Convert to fraction form
    626.76/938.70 = 337.50/x
  3. Step 3: Cross multiply
    626.76x = 938.70 × 337.50
  4. Step 4: Simplify right side
    626.76x = 316,811.25
  5. Step 5: Solve for x
    x = 316,811.25/626.76
  6. Step 6: Final answer
    x = 505.47

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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.