Home / 309,922.45-427,660.11-173,971.36

Finding the Fourth Proportional to 309,922.45, 427,660.11 and 173,971.36

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Solution

The fourth proportional to 309,922.45, 427,660.11 and 173,971.36 is: 240,062.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,922.45 : 427,660.11 = 173,971.36 : x
  2. Step 2: Convert to fraction form
    309,922.45/427,660.11 = 173,971.36/x
  3. Step 3: Cross multiply
    309,922.45x = 427,660.11 × 173,971.36
  4. Step 4: Simplify right side
    309,922.45x = 74,400,610,954.45
  5. Step 5: Solve for x
    x = 74,400,610,954.45/309,922.45
  6. Step 6: Final answer
    x = 240,062.03

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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.