Home / 255,935.27-383,976.69-78,468.46

Finding the Fourth Proportional to 255,935.27, 383,976.69 and 78,468.46

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Solution

The fourth proportional to 255,935.27, 383,976.69 and 78,468.46 is: 117,725.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,935.27 : 383,976.69 = 78,468.46 : x
  2. Step 2: Convert to fraction form
    255,935.27/383,976.69 = 78,468.46/x
  3. Step 3: Cross multiply
    255,935.27x = 383,976.69 × 78,468.46
  4. Step 4: Simplify right side
    255,935.27x = 30,130,058,286.00
  5. Step 5: Solve for x
    x = 30,130,058,286.00/255,935.27
  6. Step 6: Final answer
    x = 117,725.31

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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.