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Finding the Fourth Proportional to 276,732.40, 415,098.60 and 136,764.40

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Solution

The fourth proportional to 276,732.40, 415,098.60 and 136,764.40 is: 205,146.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,732.40 : 415,098.60 = 136,764.40 : x
  2. Step 2: Convert to fraction form
    276,732.40/415,098.60 = 136,764.40/x
  3. Step 3: Cross multiply
    276,732.40x = 415,098.60 × 136,764.40
  4. Step 4: Simplify right side
    276,732.40x = 56,770,710,969.84
  5. Step 5: Solve for x
    x = 56,770,710,969.84/276,732.40
  6. Step 6: Final answer
    x = 205,146.60

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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.