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Finding the Fourth Proportional to 356,178.98, 491,522.37 and 203,213.22

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Solution

The fourth proportional to 356,178.98, 491,522.37 and 203,213.22 is: 280,431.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,178.98 : 491,522.37 = 203,213.22 : x
  2. Step 2: Convert to fraction form
    356,178.98/491,522.37 = 203,213.22/x
  3. Step 3: Cross multiply
    356,178.98x = 491,522.37 × 203,213.22
  4. Step 4: Simplify right side
    356,178.98x = 99,883,843,509.73
  5. Step 5: Solve for x
    x = 99,883,843,509.73/356,178.98
  6. Step 6: Final answer
    x = 280,431.61

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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.