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Finding the Fourth Proportional to 207,781.46, 311,672.28 and 50,009.91

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Solution

The fourth proportional to 207,781.46, 311,672.28 and 50,009.91 is: 75,014.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,781.46 : 311,672.28 = 50,009.91 : x
  2. Step 2: Convert to fraction form
    207,781.46/311,672.28 = 50,009.91/x
  3. Step 3: Cross multiply
    207,781.46x = 311,672.28 × 50,009.91
  4. Step 4: Simplify right side
    207,781.46x = 15,586,703,314.45
  5. Step 5: Solve for x
    x = 15,586,703,314.45/207,781.46
  6. Step 6: Final answer
    x = 75,014.89

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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.