Home / 281,733.87-388,775.12-154,400.43

Finding the Fourth Proportional to 281,733.87, 388,775.12 and 154,400.43

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Solution

The fourth proportional to 281,733.87, 388,775.12 and 154,400.43 is: 213,062.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,733.87 : 388,775.12 = 154,400.43 : x
  2. Step 2: Convert to fraction form
    281,733.87/388,775.12 = 154,400.43/x
  3. Step 3: Cross multiply
    281,733.87x = 388,775.12 × 154,400.43
  4. Step 4: Simplify right side
    281,733.87x = 60,027,044,929.30
  5. Step 5: Solve for x
    x = 60,027,044,929.30/281,733.87
  6. Step 6: Final answer
    x = 213,062.93

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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.