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Finding the Fourth Proportional to 551,993.50, 827,990.27 and 147,187.09

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Solution

The fourth proportional to 551,993.50, 827,990.27 and 147,187.09 is: 220,780.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,993.50 : 827,990.27 = 147,187.09 : x
  2. Step 2: Convert to fraction form
    551,993.50/827,990.27 = 147,187.09/x
  3. Step 3: Cross multiply
    551,993.50x = 827,990.27 × 147,187.09
  4. Step 4: Simplify right side
    551,993.50x = 121,869,479,240.62
  5. Step 5: Solve for x
    x = 121,869,479,240.62/551,993.50
  6. Step 6: Final answer
    x = 220,780.64

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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.