Home / 231,318.30-346,930.98-81,564.69

Finding the Fourth Proportional to 231,318.30, 346,930.98 and 81,564.69

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Solution

The fourth proportional to 231,318.30, 346,930.98 and 81,564.69 is: 122,330.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,318.30 : 346,930.98 = 81,564.69 : x
  2. Step 2: Convert to fraction form
    231,318.30/346,930.98 = 81,564.69/x
  3. Step 3: Cross multiply
    231,318.30x = 346,930.98 × 81,564.69
  4. Step 4: Simplify right side
    231,318.30x = 28,297,317,835.10
  5. Step 5: Solve for x
    x = 28,297,317,835.10/231,318.30
  6. Step 6: Final answer
    x = 122,330.65

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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.