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Finding the Fourth Proportional to 626.04, 938.48 and 260.91

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Solution

The fourth proportional to 626.04, 938.48 and 260.91 is: 391.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.04 : 938.48 = 260.91 : x
  2. Step 2: Convert to fraction form
    626.04/938.48 = 260.91/x
  3. Step 3: Cross multiply
    626.04x = 938.48 × 260.91
  4. Step 4: Simplify right side
    626.04x = 244,857.51
  5. Step 5: Solve for x
    x = 244,857.51/626.04
  6. Step 6: Final answer
    x = 391.12

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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.