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Finding the Fourth Proportional to 312,892.06, 431,668.89 and 204,124.27

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Solution

The fourth proportional to 312,892.06, 431,668.89 and 204,124.27 is: 281,611.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,892.06 : 431,668.89 = 204,124.27 : x
  2. Step 2: Convert to fraction form
    312,892.06/431,668.89 = 204,124.27/x
  3. Step 3: Cross multiply
    312,892.06x = 431,668.89 × 204,124.27
  4. Step 4: Simplify right side
    312,892.06x = 88,114,097,052.96
  5. Step 5: Solve for x
    x = 88,114,097,052.96/312,892.06
  6. Step 6: Final answer
    x = 281,611.80

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1.5x scale

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.