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Finding the Fourth Proportional to 307,807.72, 461,737.90 and 108,110.72

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Solution

The fourth proportional to 307,807.72, 461,737.90 and 108,110.72 is: 162,175.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,807.72 : 461,737.90 = 108,110.72 : x
  2. Step 2: Convert to fraction form
    307,807.72/461,737.90 = 108,110.72/x
  3. Step 3: Cross multiply
    307,807.72x = 461,737.90 × 108,110.72
  4. Step 4: Simplify right side
    307,807.72x = 49,918,816,820.29
  5. Step 5: Solve for x
    x = 49,918,816,820.29/307,807.72
  6. Step 6: Final answer
    x = 162,175.32

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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.