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Finding the Fourth Proportional to 626.34, 940.30 and 337.98

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Solution

The fourth proportional to 626.34, 940.30 and 337.98 is: 507.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.34 : 940.30 = 337.98 : x
  2. Step 2: Convert to fraction form
    626.34/940.30 = 337.98/x
  3. Step 3: Cross multiply
    626.34x = 940.30 × 337.98
  4. Step 4: Simplify right side
    626.34x = 317,802.59
  5. Step 5: Solve for x
    x = 317,802.59/626.34
  6. Step 6: Final answer
    x = 507.40

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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.