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Finding the Fourth Proportional to 356,633.57, 492,204.69 and 220,711.30

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Solution

The fourth proportional to 356,633.57, 492,204.69 and 220,711.30 is: 304,612.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,633.57 : 492,204.69 = 220,711.30 : x
  2. Step 2: Convert to fraction form
    356,633.57/492,204.69 = 220,711.30/x
  3. Step 3: Cross multiply
    356,633.57x = 492,204.69 × 220,711.30
  4. Step 4: Simplify right side
    356,633.57x = 108,635,135,765.49
  5. Step 5: Solve for x
    x = 108,635,135,765.49/356,633.57
  6. Step 6: Final answer
    x = 304,612.76

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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.