Home / 282,876.48-388,321.38-280,217.52

Finding the Fourth Proportional to 282,876.48, 388,321.38 and 280,217.52

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Solution

The fourth proportional to 282,876.48, 388,321.38 and 280,217.52 is: 384,671.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,876.48 : 388,321.38 = 280,217.52 : x
  2. Step 2: Convert to fraction form
    282,876.48/388,321.38 = 280,217.52/x
  3. Step 3: Cross multiply
    282,876.48x = 388,321.38 × 280,217.52
  4. Step 4: Simplify right side
    282,876.48x = 108,814,454,066.58
  5. Step 5: Solve for x
    x = 108,814,454,066.58/282,876.48
  6. Step 6: Final answer
    x = 384,671.27

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.