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Finding the Fourth Proportional to 478,097.70, 717,147.03 and 123,112.50

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Solution

The fourth proportional to 478,097.70, 717,147.03 and 123,112.50 is: 184,668.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,097.70 : 717,147.03 = 123,112.50 : x
  2. Step 2: Convert to fraction form
    478,097.70/717,147.03 = 123,112.50/x
  3. Step 3: Cross multiply
    478,097.70x = 717,147.03 × 123,112.50
  4. Step 4: Simplify right side
    478,097.70x = 88,289,763,730.88
  5. Step 5: Solve for x
    x = 88,289,763,730.88/478,097.70
  6. Step 6: Final answer
    x = 184,668.87

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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.