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Finding the Fourth Proportional to 490,099.60, 735,149.40 and 174,912.40

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Solution

The fourth proportional to 490,099.60, 735,149.40 and 174,912.40 is: 262,368.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,099.60 : 735,149.40 = 174,912.40 : x
  2. Step 2: Convert to fraction form
    490,099.60/735,149.40 = 174,912.40/x
  3. Step 3: Cross multiply
    490,099.60x = 735,149.40 × 174,912.40
  4. Step 4: Simplify right side
    490,099.60x = 128,586,745,912.56
  5. Step 5: Solve for x
    x = 128,586,745,912.56/490,099.60
  6. Step 6: Final answer
    x = 262,368.60

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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.