Home / 299,789.28-413,139.96-214,758.72

Finding the Fourth Proportional to 299,789.28, 413,139.96 and 214,758.72

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Solution

The fourth proportional to 299,789.28, 413,139.96 and 214,758.72 is: 295,959.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,789.28 : 413,139.96 = 214,758.72 : x
  2. Step 2: Convert to fraction form
    299,789.28/413,139.96 = 214,758.72/x
  3. Step 3: Cross multiply
    299,789.28x = 413,139.96 × 214,758.72
  4. Step 4: Simplify right side
    299,789.28x = 88,725,408,990.45
  5. Step 5: Solve for x
    x = 88,725,408,990.45/299,789.28
  6. Step 6: Final answer
    x = 295,959.25

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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.