Home / 208,832.20-313,248.30-120,358.60

Finding the Fourth Proportional to 208,832.20, 313,248.30 and 120,358.60

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Solution

The fourth proportional to 208,832.20, 313,248.30 and 120,358.60 is: 180,537.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,832.20 : 313,248.30 = 120,358.60 : x
  2. Step 2: Convert to fraction form
    208,832.20/313,248.30 = 120,358.60/x
  3. Step 3: Cross multiply
    208,832.20x = 313,248.30 × 120,358.60
  4. Step 4: Simplify right side
    208,832.20x = 37,702,126,840.38
  5. Step 5: Solve for x
    x = 37,702,126,840.38/208,832.20
  6. Step 6: Final answer
    x = 180,537.90

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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.