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Finding the Fourth Proportional to 419,099.64, 628,672.69 and 119,557.18

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Solution

The fourth proportional to 419,099.64, 628,672.69 and 119,557.18 is: 179,342.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,099.64 : 628,672.69 = 119,557.18 : x
  2. Step 2: Convert to fraction form
    419,099.64/628,672.69 = 119,557.18/x
  3. Step 3: Cross multiply
    419,099.64x = 628,672.69 × 119,557.18
  4. Step 4: Simplify right side
    419,099.64x = 75,162,334,894.70
  5. Step 5: Solve for x
    x = 75,162,334,894.70/419,099.64
  6. Step 6: Final answer
    x = 179,342.40

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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.