Home / 199,402.24-298,991.28-66,211.20

Finding the Fourth Proportional to 199,402.24, 298,991.28 and 66,211.20

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Solution

The fourth proportional to 199,402.24, 298,991.28 and 66,211.20 is: 99,279.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,402.24 : 298,991.28 = 66,211.20 : x
  2. Step 2: Convert to fraction form
    199,402.24/298,991.28 = 66,211.20/x
  3. Step 3: Cross multiply
    199,402.24x = 298,991.28 × 66,211.20
  4. Step 4: Simplify right side
    199,402.24x = 19,796,571,438.34
  5. Step 5: Solve for x
    x = 19,796,571,438.34/199,402.24
  6. Step 6: Final answer
    x = 99,279.58

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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.