Home / 199,165.20-298,747.80-172,921.20

Finding the Fourth Proportional to 199,165.20, 298,747.80 and 172,921.20

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Solution

The fourth proportional to 199,165.20, 298,747.80 and 172,921.20 is: 259,381.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,165.20 : 298,747.80 = 172,921.20 : x
  2. Step 2: Convert to fraction form
    199,165.20/298,747.80 = 172,921.20/x
  3. Step 3: Cross multiply
    199,165.20x = 298,747.80 × 172,921.20
  4. Step 4: Simplify right side
    199,165.20x = 51,659,828,073.36
  5. Step 5: Solve for x
    x = 51,659,828,073.36/199,165.20
  6. Step 6: Final answer
    x = 259,381.80

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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.