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Finding the Fourth Proportional to 297,317.32, 445,972.10 and 72,679.73

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Solution

The fourth proportional to 297,317.32, 445,972.10 and 72,679.73 is: 109,018.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,317.32 : 445,972.10 = 72,679.73 : x
  2. Step 2: Convert to fraction form
    297,317.32/445,972.10 = 72,679.73/x
  3. Step 3: Cross multiply
    297,317.32x = 445,972.10 × 72,679.73
  4. Step 4: Simplify right side
    297,317.32x = 32,413,131,452.13
  5. Step 5: Solve for x
    x = 32,413,131,452.13/297,317.32
  6. Step 6: Final answer
    x = 109,018.65

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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.