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Finding the Fourth Proportional to 203,103.04, 304,716.84 and 90,877.72

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Solution

The fourth proportional to 203,103.04, 304,716.84 and 90,877.72 is: 136,344.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,103.04 : 304,716.84 = 90,877.72 : x
  2. Step 2: Convert to fraction form
    203,103.04/304,716.84 = 90,877.72/x
  3. Step 3: Cross multiply
    203,103.04x = 304,716.84 × 90,877.72
  4. Step 4: Simplify right side
    203,103.04x = 27,691,971,664.80
  5. Step 5: Solve for x
    x = 27,691,971,664.80/203,103.04
  6. Step 6: Final answer
    x = 136,344.45

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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.