Home / 626.03-939.14-215.18

Finding the Fourth Proportional to 626.03, 939.14 and 215.18

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Solution

The fourth proportional to 626.03, 939.14 and 215.18 is: 322.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.03 : 939.14 = 215.18 : x
  2. Step 2: Convert to fraction form
    626.03/939.14 = 215.18/x
  3. Step 3: Cross multiply
    626.03x = 939.14 × 215.18
  4. Step 4: Simplify right side
    626.03x = 202,078.37
  5. Step 5: Solve for x
    x = 202,078.37/626.03
  6. Step 6: Final answer
    x = 322.80

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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.