Home / 339,968.30-508,915.65-199,309.10

Finding the Fourth Proportional to 339,968.30, 508,915.65 and 199,309.10

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Solution

The fourth proportional to 339,968.30, 508,915.65 and 199,309.10 is: 298,355.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,968.30 : 508,915.65 = 199,309.10 : x
  2. Step 2: Convert to fraction form
    339,968.30/508,915.65 = 199,309.10/x
  3. Step 3: Cross multiply
    339,968.30x = 508,915.65 × 199,309.10
  4. Step 4: Simplify right side
    339,968.30x = 101,431,520,177.42
  5. Step 5: Solve for x
    x = 101,431,520,177.42/339,968.30
  6. Step 6: Final answer
    x = 298,355.82

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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.