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Finding the Fourth Proportional to 188,040, 259,502.88 and 108,552

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Solution

The fourth proportional to 188,040, 259,502.88 and 108,552 is: 149,806.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,040 : 259,502.88 = 108,552 : x
  2. Step 2: Convert to fraction form
    188,040/259,502.88 = 108,552/x
  3. Step 3: Cross multiply
    188,040x = 259,502.88 × 108,552
  4. Step 4: Simplify right side
    188,040x = 28,169,556,629.76
  5. Step 5: Solve for x
    x = 28,169,556,629.76/188,040
  6. Step 6: Final answer
    x = 149,806.19

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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.