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Finding the Fourth Proportional to 258,754.52, 388,226.28 and 109,032.32

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Solution

The fourth proportional to 258,754.52, 388,226.28 and 109,032.32 is: 163,588.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,754.52 : 388,226.28 = 109,032.32 : x
  2. Step 2: Convert to fraction form
    258,754.52/388,226.28 = 109,032.32/x
  3. Step 3: Cross multiply
    258,754.52x = 388,226.28 × 109,032.32
  4. Step 4: Simplify right side
    258,754.52x = 42,329,211,993.37
  5. Step 5: Solve for x
    x = 42,329,211,993.37/258,754.52
  6. Step 6: Final answer
    x = 163,588.30

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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.