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Finding the Fourth Proportional to 259,167.88, 388,725.54 and 69,603.62

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Solution

The fourth proportional to 259,167.88, 388,725.54 and 69,603.62 is: 104,398.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,167.88 : 388,725.54 = 69,603.62 : x
  2. Step 2: Convert to fraction form
    259,167.88/388,725.54 = 69,603.62/x
  3. Step 3: Cross multiply
    259,167.88x = 388,725.54 × 69,603.62
  4. Step 4: Simplify right side
    259,167.88x = 27,056,702,826.83
  5. Step 5: Solve for x
    x = 27,056,702,826.83/259,167.88
  6. Step 6: Final answer
    x = 104,398.37

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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.