Home / 217,974.78-300,795.60-127,339.14

Finding the Fourth Proportional to 217,974.78, 300,795.60 and 127,339.14

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Solution

The fourth proportional to 217,974.78, 300,795.60 and 127,339.14 is: 175,722.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,974.78 : 300,795.60 = 127,339.14 : x
  2. Step 2: Convert to fraction form
    217,974.78/300,795.60 = 127,339.14/x
  3. Step 3: Cross multiply
    217,974.78x = 300,795.60 × 127,339.14
  4. Step 4: Simplify right side
    217,974.78x = 38,303,053,019.78
  5. Step 5: Solve for x
    x = 38,303,053,019.78/217,974.78
  6. Step 6: Final answer
    x = 175,722.41

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1.5x scale

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.