Home / 412,259.11-618,372.50-172,311.04

Finding the Fourth Proportional to 412,259.11, 618,372.50 and 172,311.04

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Solution

The fourth proportional to 412,259.11, 618,372.50 and 172,311.04 is: 258,459.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,259.11 : 618,372.50 = 172,311.04 : x
  2. Step 2: Convert to fraction form
    412,259.11/618,372.50 = 172,311.04/x
  3. Step 3: Cross multiply
    412,259.11x = 618,372.50 × 172,311.04
  4. Step 4: Simplify right side
    412,259.11x = 106,552,408,493.81
  5. Step 5: Solve for x
    x = 106,552,408,493.81/412,259.11
  6. Step 6: Final answer
    x = 258,459.80

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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.