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Finding the Fourth Proportional to 188,588, 260,251.44 and 103,710.56

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Solution

The fourth proportional to 188,588, 260,251.44 and 103,710.56 is: 143,120.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,588 : 260,251.44 = 103,710.56 : x
  2. Step 2: Convert to fraction form
    188,588/260,251.44 = 103,710.56/x
  3. Step 3: Cross multiply
    188,588x = 260,251.44 × 103,710.56
  4. Step 4: Simplify right side
    188,588x = 26,990,822,583.21
  5. Step 5: Solve for x
    x = 26,990,822,583.21/188,588
  6. Step 6: Final answer
    x = 143,120.57

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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.