Home / 203,489.10-305,233.65-173,421.90

Finding the Fourth Proportional to 203,489.10, 305,233.65 and 173,421.90

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Solution

The fourth proportional to 203,489.10, 305,233.65 and 173,421.90 is: 260,132.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,489.10 : 305,233.65 = 173,421.90 : x
  2. Step 2: Convert to fraction form
    203,489.10/305,233.65 = 173,421.90/x
  3. Step 3: Cross multiply
    203,489.10x = 305,233.65 × 173,421.90
  4. Step 4: Simplify right side
    203,489.10x = 52,934,199,526.94
  5. Step 5: Solve for x
    x = 52,934,199,526.94/203,489.10
  6. Step 6: Final answer
    x = 260,132.85

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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.