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Finding the Fourth Proportional to 307,976.05, 461,980.37 and 97,630.39

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Solution

The fourth proportional to 307,976.05, 461,980.37 and 97,630.39 is: 146,450.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,976.05 : 461,980.37 = 97,630.39 : x
  2. Step 2: Convert to fraction form
    307,976.05/461,980.37 = 97,630.39/x
  3. Step 3: Cross multiply
    307,976.05x = 461,980.37 × 97,630.39
  4. Step 4: Simplify right side
    307,976.05x = 45,103,323,695.44
  5. Step 5: Solve for x
    x = 45,103,323,695.44/307,976.05
  6. Step 6: Final answer
    x = 146,450.75

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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.