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Finding the Fourth Proportional to 188,347.16, 259,963.92 and 107,821.22

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Solution

The fourth proportional to 188,347.16, 259,963.92 and 107,821.22 is: 148,818.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,347.16 : 259,963.92 = 107,821.22 : x
  2. Step 2: Convert to fraction form
    188,347.16/259,963.92 = 107,821.22/x
  3. Step 3: Cross multiply
    188,347.16x = 259,963.92 × 107,821.22
  4. Step 4: Simplify right side
    188,347.16x = 28,029,627,010.38
  5. Step 5: Solve for x
    x = 28,029,627,010.38/188,347.16
  6. Step 6: Final answer
    x = 148,818.95

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1.5x scale

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.