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Finding the Fourth Proportional to 381,404.62, 526,320.06 and 228,449.30

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Solution

The fourth proportional to 381,404.62, 526,320.06 and 228,449.30 is: 315,249.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,404.62 : 526,320.06 = 228,449.30 : x
  2. Step 2: Convert to fraction form
    381,404.62/526,320.06 = 228,449.30/x
  3. Step 3: Cross multiply
    381,404.62x = 526,320.06 × 228,449.30
  4. Step 4: Simplify right side
    381,404.62x = 120,237,449,282.96
  5. Step 5: Solve for x
    x = 120,237,449,282.96/381,404.62
  6. Step 6: Final answer
    x = 315,249.06

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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.