Home / 268,864.84-403,546.20-135,838.72

Finding the Fourth Proportional to 268,864.84, 403,546.20 and 135,838.72

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Solution

The fourth proportional to 268,864.84, 403,546.20 and 135,838.72 is: 203,883.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,864.84 : 403,546.20 = 135,838.72 : x
  2. Step 2: Convert to fraction form
    268,864.84/403,546.20 = 135,838.72/x
  3. Step 3: Cross multiply
    268,864.84x = 403,546.20 × 135,838.72
  4. Step 4: Simplify right side
    268,864.84x = 54,817,199,268.86
  5. Step 5: Solve for x
    x = 54,817,199,268.86/268,864.84
  6. Step 6: Final answer
    x = 203,883.85

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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.