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Finding the Fourth Proportional to 203,170.12, 304,751.94 and 55,426.12

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Solution

The fourth proportional to 203,170.12, 304,751.94 and 55,426.12 is: 83,138.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,170.12 : 304,751.94 = 55,426.12 : x
  2. Step 2: Convert to fraction form
    203,170.12/304,751.94 = 55,426.12/x
  3. Step 3: Cross multiply
    203,170.12x = 304,751.94 × 55,426.12
  4. Step 4: Simplify right side
    203,170.12x = 16,891,217,596.67
  5. Step 5: Solve for x
    x = 16,891,217,596.67/203,170.12
  6. Step 6: Final answer
    x = 83,138.30

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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.