Home / 216,974.78-299,360.41-140,372.54

Finding the Fourth Proportional to 216,974.78, 299,360.41 and 140,372.54

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Solution

The fourth proportional to 216,974.78, 299,360.41 and 140,372.54 is: 193,672.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,974.78 : 299,360.41 = 140,372.54 : x
  2. Step 2: Convert to fraction form
    216,974.78/299,360.41 = 140,372.54/x
  3. Step 3: Cross multiply
    216,974.78x = 299,360.41 × 140,372.54
  4. Step 4: Simplify right side
    216,974.78x = 42,021,979,560.06
  5. Step 5: Solve for x
    x = 42,021,979,560.06/216,974.78
  6. Step 6: Final answer
    x = 193,672.19

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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.