Home / 297,916.80-446,486.40-137,974.20

Finding the Fourth Proportional to 297,916.80, 446,486.40 and 137,974.20

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Solution

The fourth proportional to 297,916.80, 446,486.40 and 137,974.20 is: 206,781.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,916.80 : 446,486.40 = 137,974.20 : x
  2. Step 2: Convert to fraction form
    297,916.80/446,486.40 = 137,974.20/x
  3. Step 3: Cross multiply
    297,916.80x = 446,486.40 × 137,974.20
  4. Step 4: Simplify right side
    297,916.80x = 61,603,603,850.88
  5. Step 5: Solve for x
    x = 61,603,603,850.88/297,916.80
  6. Step 6: Final answer
    x = 206,781.24

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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.