Home / 449,136.20-673,715.10-133,603.40

Finding the Fourth Proportional to 449,136.20, 673,715.10 and 133,603.40

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Solution

The fourth proportional to 449,136.20, 673,715.10 and 133,603.40 is: 200,408.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,136.20 : 673,715.10 = 133,603.40 : x
  2. Step 2: Convert to fraction form
    449,136.20/673,715.10 = 133,603.40/x
  3. Step 3: Cross multiply
    449,136.20x = 673,715.10 × 133,603.40
  4. Step 4: Simplify right side
    449,136.20x = 90,010,627,991.34
  5. Step 5: Solve for x
    x = 90,010,627,991.34/449,136.20
  6. Step 6: Final answer
    x = 200,408.31

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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.