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Finding the Fourth Proportional to 400,690.53, 600,081.71 and 231,855.08

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Solution

The fourth proportional to 400,690.53, 600,081.71 and 231,855.08 is: 347,230.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,690.53 : 600,081.71 = 231,855.08 : x
  2. Step 2: Convert to fraction form
    400,690.53/600,081.71 = 231,855.08/x
  3. Step 3: Cross multiply
    400,690.53x = 600,081.71 × 231,855.08
  4. Step 4: Simplify right side
    400,690.53x = 139,131,988,718.90
  5. Step 5: Solve for x
    x = 139,131,988,718.90/400,690.53
  6. Step 6: Final answer
    x = 347,230.54

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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.