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Finding the Fourth Proportional to 215,674, 297,626.11 and 117,558.07

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Solution

The fourth proportional to 215,674, 297,626.11 and 117,558.07 is: 162,227.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,674 : 297,626.11 = 117,558.07 : x
  2. Step 2: Convert to fraction form
    215,674/297,626.11 = 117,558.07/x
  3. Step 3: Cross multiply
    215,674x = 297,626.11 × 117,558.07
  4. Step 4: Simplify right side
    215,674x = 34,988,351,073.21
  5. Step 5: Solve for x
    x = 34,988,351,073.21/215,674
  6. Step 6: Final answer
    x = 162,227.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.