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Finding the Fourth Proportional to 307,910.20, 461,879.70 and 97,564.60

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Solution

The fourth proportional to 307,910.20, 461,879.70 and 97,564.60 is: 146,351.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,910.20 : 461,879.70 = 97,564.60 : x
  2. Step 2: Convert to fraction form
    307,910.20/461,879.70 = 97,564.60/x
  3. Step 3: Cross multiply
    307,910.20x = 461,879.70 × 97,564.60
  4. Step 4: Simplify right side
    307,910.20x = 45,063,108,178.62
  5. Step 5: Solve for x
    x = 45,063,108,178.62/307,910.20
  6. Step 6: Final answer
    x = 146,351.46

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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.