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Finding the Fourth Proportional to 638,366.44, 957,223.32 and 211,748.26

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Solution

The fourth proportional to 638,366.44, 957,223.32 and 211,748.26 is: 317,514.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,366.44 : 957,223.32 = 211,748.26 : x
  2. Step 2: Convert to fraction form
    638,366.44/957,223.32 = 211,748.26/x
  3. Step 3: Cross multiply
    638,366.44x = 957,223.32 × 211,748.26
  4. Step 4: Simplify right side
    638,366.44x = 202,690,372,441.42
  5. Step 5: Solve for x
    x = 202,690,372,441.42/638,366.44
  6. Step 6: Final answer
    x = 317,514.14

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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.