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Finding the Fourth Proportional to 400,726.59, 600,135.81 and 231,891

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Solution

The fourth proportional to 400,726.59, 600,135.81 and 231,891 is: 347,284.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,726.59 : 600,135.81 = 231,891 : x
  2. Step 2: Convert to fraction form
    400,726.59/600,135.81 = 231,891/x
  3. Step 3: Cross multiply
    400,726.59x = 600,135.81 × 231,891
  4. Step 4: Simplify right side
    400,726.59x = 139,166,093,116.71
  5. Step 5: Solve for x
    x = 139,166,093,116.71/400,726.59
  6. Step 6: Final answer
    x = 347,284.40

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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.