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Finding the Fourth Proportional to 188,744, 260,468.55 and 103,862.89

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Solution

The fourth proportional to 188,744, 260,468.55 and 103,862.89 is: 143,331.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,744 : 260,468.55 = 103,862.89 : x
  2. Step 2: Convert to fraction form
    188,744/260,468.55 = 103,862.89/x
  3. Step 3: Cross multiply
    188,744x = 260,468.55 × 103,862.89
  4. Step 4: Simplify right side
    188,744x = 27,053,014,535.45
  5. Step 5: Solve for x
    x = 27,053,014,535.45/188,744
  6. Step 6: Final answer
    x = 143,331.79

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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.