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Finding the Fourth Proportional to 371,395.73, 512,531.75 and 201,629.86

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Solution

The fourth proportional to 371,395.73, 512,531.75 and 201,629.86 is: 278,252.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,395.73 : 512,531.75 = 201,629.86 : x
  2. Step 2: Convert to fraction form
    371,395.73/512,531.75 = 201,629.86/x
  3. Step 3: Cross multiply
    371,395.73x = 512,531.75 × 201,629.86
  4. Step 4: Simplify right side
    371,395.73x = 103,341,704,998.06
  5. Step 5: Solve for x
    x = 103,341,704,998.06/371,395.73
  6. Step 6: Final answer
    x = 278,252.27

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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.