Home / 259,009.62-388,555.95-109,271.97

Finding the Fourth Proportional to 259,009.62, 388,555.95 and 109,271.97

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Solution

The fourth proportional to 259,009.62, 388,555.95 and 109,271.97 is: 163,925.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,009.62 : 388,555.95 = 109,271.97 : x
  2. Step 2: Convert to fraction form
    259,009.62/388,555.95 = 109,271.97/x
  3. Step 3: Cross multiply
    259,009.62x = 388,555.95 × 109,271.97
  4. Step 4: Simplify right side
    259,009.62x = 42,458,273,121.35
  5. Step 5: Solve for x
    x = 42,458,273,121.35/259,009.62
  6. Step 6: Final answer
    x = 163,925.47

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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.