Home / 281,112.67-387,944.62-153,788.27

Finding the Fourth Proportional to 281,112.67, 387,944.62 and 153,788.27

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Solution

The fourth proportional to 281,112.67, 387,944.62 and 153,788.27 is: 212,232.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,112.67 : 387,944.62 = 153,788.27 : x
  2. Step 2: Convert to fraction form
    281,112.67/387,944.62 = 153,788.27/x
  3. Step 3: Cross multiply
    281,112.67x = 387,944.62 × 153,788.27
  4. Step 4: Simplify right side
    281,112.67x = 59,661,330,025.88
  5. Step 5: Solve for x
    x = 59,661,330,025.88/281,112.67
  6. Step 6: Final answer
    x = 212,232.80

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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.