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Finding the Fourth Proportional to 251,149.62, 346,585.05 and 137,969.94

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Solution

The fourth proportional to 251,149.62, 346,585.05 and 137,969.94 is: 190,397.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,149.62 : 346,585.05 = 137,969.94 : x
  2. Step 2: Convert to fraction form
    251,149.62/346,585.05 = 137,969.94/x
  3. Step 3: Cross multiply
    251,149.62x = 346,585.05 × 137,969.94
  4. Step 4: Simplify right side
    251,149.62x = 47,818,318,553.40
  5. Step 5: Solve for x
    x = 47,818,318,553.40/251,149.62
  6. Step 6: Final answer
    x = 190,397.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.