Home / 199,406.24-298,997.28-66,215.20

Finding the Fourth Proportional to 199,406.24, 298,997.28 and 66,215.20

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Solution

The fourth proportional to 199,406.24, 298,997.28 and 66,215.20 is: 99,285.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,406.24 : 298,997.28 = 66,215.20 : x
  2. Step 2: Convert to fraction form
    199,406.24/298,997.28 = 66,215.20/x
  3. Step 3: Cross multiply
    199,406.24x = 298,997.28 × 66,215.20
  4. Step 4: Simplify right side
    199,406.24x = 19,798,164,694.66
  5. Step 5: Solve for x
    x = 19,798,164,694.66/199,406.24
  6. Step 6: Final answer
    x = 99,285.58

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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.