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Finding the Fourth Proportional to 271,730.15, 407,665.70 and 103,253.39

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Solution

The fourth proportional to 271,730.15, 407,665.70 and 103,253.39 is: 154,906.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,730.15 : 407,665.70 = 103,253.39 : x
  2. Step 2: Convert to fraction form
    271,730.15/407,665.70 = 103,253.39/x
  3. Step 3: Cross multiply
    271,730.15x = 407,665.70 × 103,253.39
  4. Step 4: Simplify right side
    271,730.15x = 42,092,865,511.72
  5. Step 5: Solve for x
    x = 42,092,865,511.72/271,730.15
  6. Step 6: Final answer
    x = 154,906.86

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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.