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Finding the Fourth Proportional to 557,644.20, 836,466.30 and 136,914.60

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Solution

The fourth proportional to 557,644.20, 836,466.30 and 136,914.60 is: 205,371.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,644.20 : 836,466.30 = 136,914.60 : x
  2. Step 2: Convert to fraction form
    557,644.20/836,466.30 = 136,914.60/x
  3. Step 3: Cross multiply
    557,644.20x = 836,466.30 × 136,914.60
  4. Step 4: Simplify right side
    557,644.20x = 114,524,448,877.98
  5. Step 5: Solve for x
    x = 114,524,448,877.98/557,644.20
  6. Step 6: Final answer
    x = 205,371.90

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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.