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Finding the Fourth Proportional to 230,893.03, 346,391.43 and 81,143.65

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Solution

The fourth proportional to 230,893.03, 346,391.43 and 81,143.65 is: 121,733.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,893.03 : 346,391.43 = 81,143.65 : x
  2. Step 2: Convert to fraction form
    230,893.03/346,391.43 = 81,143.65/x
  3. Step 3: Cross multiply
    230,893.03x = 346,391.43 × 81,143.65
  4. Step 4: Simplify right side
    230,893.03x = 28,107,464,958.92
  5. Step 5: Solve for x
    x = 28,107,464,958.92/230,893.03
  6. Step 6: Final answer
    x = 121,733.71

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1.5x scale

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.