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Finding the Fourth Proportional to 259,100.32, 388,702.32 and 92,901.28

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Solution

The fourth proportional to 259,100.32, 388,702.32 and 92,901.28 is: 139,370.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,100.32 : 388,702.32 = 92,901.28 : x
  2. Step 2: Convert to fraction form
    259,100.32/388,702.32 = 92,901.28/x
  3. Step 3: Cross multiply
    259,100.32x = 388,702.32 × 92,901.28
  4. Step 4: Simplify right side
    259,100.32x = 36,110,943,066.97
  5. Step 5: Solve for x
    x = 36,110,943,066.97/259,100.32
  6. Step 6: Final answer
    x = 139,370.51

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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.