Home / 321,282.15-443,371.94-178,044.57

Finding the Fourth Proportional to 321,282.15, 443,371.94 and 178,044.57

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Solution

The fourth proportional to 321,282.15, 443,371.94 and 178,044.57 is: 245,702.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,282.15 : 443,371.94 = 178,044.57 : x
  2. Step 2: Convert to fraction form
    321,282.15/443,371.94 = 178,044.57/x
  3. Step 3: Cross multiply
    321,282.15x = 443,371.94 × 178,044.57
  4. Step 4: Simplify right side
    321,282.15x = 78,939,966,407.37
  5. Step 5: Solve for x
    x = 78,939,966,407.37/321,282.15
  6. Step 6: Final answer
    x = 245,702.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.