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Finding the Fourth Proportional to 478,099.70, 717,150.04 and 123,114.50

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Solution

The fourth proportional to 478,099.70, 717,150.04 and 123,114.50 is: 184,671.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,099.70 : 717,150.04 = 123,114.50 : x
  2. Step 2: Convert to fraction form
    478,099.70/717,150.04 = 123,114.50/x
  3. Step 3: Cross multiply
    478,099.70x = 717,150.04 × 123,114.50
  4. Step 4: Simplify right side
    478,099.70x = 88,291,568,599.58
  5. Step 5: Solve for x
    x = 88,291,568,599.58/478,099.70
  6. Step 6: Final answer
    x = 184,671.88

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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.