Home / 238,986.10-358,183.90-120,691.27

Finding the Fourth Proportional to 238,986.10, 358,183.90 and 120,691.27

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Solution

The fourth proportional to 238,986.10, 358,183.90 and 120,691.27 is: 180,887.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,986.10 : 358,183.90 = 120,691.27 : x
  2. Step 2: Convert to fraction form
    238,986.10/358,183.90 = 120,691.27/x
  3. Step 3: Cross multiply
    238,986.10x = 358,183.90 × 120,691.27
  4. Step 4: Simplify right side
    238,986.10x = 43,229,669,784.55
  5. Step 5: Solve for x
    x = 43,229,669,784.55/238,986.10
  6. Step 6: Final answer
    x = 180,887.80

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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.