Home / 671,435.75-1,007,181.41-198,121.11

Finding the Fourth Proportional to 671,435.75, 1,007,181.41 and 198,121.11

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Solution

The fourth proportional to 671,435.75, 1,007,181.41 and 198,121.11 is: 297,189.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,435.75 : 1,007,181.41 = 198,121.11 : x
  2. Step 2: Convert to fraction form
    671,435.75/1,007,181.41 = 198,121.11/x
  3. Step 3: Cross multiply
    671,435.75x = 1,007,181.41 × 198,121.11
  4. Step 4: Simplify right side
    671,435.75x = 199,543,894,153.03
  5. Step 5: Solve for x
    x = 199,543,894,153.03/671,435.75
  6. Step 6: Final answer
    x = 297,189.86

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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.