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Finding the Fourth Proportional to 554,081.09, 831,121.82 and 133,356.97

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Solution

The fourth proportional to 554,081.09, 831,121.82 and 133,356.97 is: 200,035.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,081.09 : 831,121.82 = 133,356.97 : x
  2. Step 2: Convert to fraction form
    554,081.09/831,121.82 = 133,356.97/x
  3. Step 3: Cross multiply
    554,081.09x = 831,121.82 × 133,356.97
  4. Step 4: Simplify right side
    554,081.09x = 110,835,882,793.69
  5. Step 5: Solve for x
    x = 110,835,882,793.69/554,081.09
  6. Step 6: Final answer
    x = 200,035.49

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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.