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Finding the Fourth Proportional to 297,731.97, 447,172.38 and 255,133.96

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Solution

The fourth proportional to 297,731.97, 447,172.38 and 255,133.96 is: 383,193.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,731.97 : 447,172.38 = 255,133.96 : x
  2. Step 2: Convert to fraction form
    297,731.97/447,172.38 = 255,133.96/x
  3. Step 3: Cross multiply
    297,731.97x = 447,172.38 × 255,133.96
  4. Step 4: Simplify right side
    297,731.97x = 114,088,858,994.09
  5. Step 5: Solve for x
    x = 114,088,858,994.09/297,731.97
  6. Step 6: Final answer
    x = 383,193.18

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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.