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Finding the Fourth Proportional to 554,400.60, 831,600.90 and 133,676.48

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Solution

The fourth proportional to 554,400.60, 831,600.90 and 133,676.48 is: 200,514.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,400.60 : 831,600.90 = 133,676.48 : x
  2. Step 2: Convert to fraction form
    554,400.60/831,600.90 = 133,676.48/x
  3. Step 3: Cross multiply
    554,400.60x = 831,600.90 × 133,676.48
  4. Step 4: Simplify right side
    554,400.60x = 111,165,476,918.83
  5. Step 5: Solve for x
    x = 111,165,476,918.83/554,400.60
  6. Step 6: Final answer
    x = 200,514.71

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Similar ratio
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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.