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Finding the Fourth Proportional to 356,330.62, 491,709.58 and 203,364.55

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Solution

The fourth proportional to 356,330.62, 491,709.58 and 203,364.55 is: 280,627.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,330.62 : 491,709.58 = 203,364.55 : x
  2. Step 2: Convert to fraction form
    356,330.62/491,709.58 = 203,364.55/x
  3. Step 3: Cross multiply
    356,330.62x = 491,709.58 × 203,364.55
  4. Step 4: Simplify right side
    356,330.62x = 99,996,297,467.39
  5. Step 5: Solve for x
    x = 99,996,297,467.39/356,330.62
  6. Step 6: Final answer
    x = 280,627.85

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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.