Home / 203,311.11-280,575.48-112,658.60

Finding the Fourth Proportional to 203,311.11, 280,575.48 and 112,658.60

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Solution

The fourth proportional to 203,311.11, 280,575.48 and 112,658.60 is: 155,472.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,311.11 : 280,575.48 = 112,658.60 : x
  2. Step 2: Convert to fraction form
    203,311.11/280,575.48 = 112,658.60/x
  3. Step 3: Cross multiply
    203,311.11x = 280,575.48 × 112,658.60
  4. Step 4: Simplify right side
    203,311.11x = 31,609,239,368.25
  5. Step 5: Solve for x
    x = 31,609,239,368.25/203,311.11
  6. Step 6: Final answer
    x = 155,472.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.