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Finding the Fourth Proportional to 297,311.82, 446,035.82 and 128,860.44

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Solution

The fourth proportional to 297,311.82, 446,035.82 and 128,860.44 is: 193,320.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,311.82 : 446,035.82 = 128,860.44 : x
  2. Step 2: Convert to fraction form
    297,311.82/446,035.82 = 128,860.44/x
  3. Step 3: Cross multiply
    297,311.82x = 446,035.82 × 128,860.44
  4. Step 4: Simplify right side
    297,311.82x = 57,476,371,376.66
  5. Step 5: Solve for x
    x = 57,476,371,376.66/297,311.82
  6. Step 6: Final answer
    x = 193,320.17

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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.