Home / 274,971.40-412,456.78-75,293.32

Finding the Fourth Proportional to 274,971.40, 412,456.78 and 75,293.32

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Solution

The fourth proportional to 274,971.40, 412,456.78 and 75,293.32 is: 112,939.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,971.40 : 412,456.78 = 75,293.32 : x
  2. Step 2: Convert to fraction form
    274,971.40/412,456.78 = 75,293.32/x
  3. Step 3: Cross multiply
    274,971.40x = 412,456.78 × 75,293.32
  4. Step 4: Simplify right side
    274,971.40x = 31,055,240,322.71
  5. Step 5: Solve for x
    x = 31,055,240,322.71/274,971.40
  6. Step 6: Final answer
    x = 112,939.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.