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Finding the Fourth Proportional to 544,015.20, 816,099.60 and 169,999.20

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Solution

The fourth proportional to 544,015.20, 816,099.60 and 169,999.20 is: 255,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,015.20 : 816,099.60 = 169,999.20 : x
  2. Step 2: Convert to fraction form
    544,015.20/816,099.60 = 169,999.20/x
  3. Step 3: Cross multiply
    544,015.20x = 816,099.60 × 169,999.20
  4. Step 4: Simplify right side
    544,015.20x = 138,736,279,120.32
  5. Step 5: Solve for x
    x = 138,736,279,120.32/544,015.20
  6. Step 6: Final answer
    x = 255,022.80

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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.