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Finding the Fourth Proportional to 203,168.12, 304,748.94 and 55,424.12

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Solution

The fourth proportional to 203,168.12, 304,748.94 and 55,424.12 is: 83,135.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,168.12 : 304,748.94 = 55,424.12 : x
  2. Step 2: Convert to fraction form
    203,168.12/304,748.94 = 55,424.12/x
  3. Step 3: Cross multiply
    203,168.12x = 304,748.94 × 55,424.12
  4. Step 4: Simplify right side
    203,168.12x = 16,890,441,820.43
  5. Step 5: Solve for x
    x = 16,890,441,820.43/203,168.12
  6. Step 6: Final answer
    x = 83,135.30

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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.