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Finding the Fourth Proportional to 253,604.43, 349,971.60 and 137,317.35

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Solution

The fourth proportional to 253,604.43, 349,971.60 and 137,317.35 is: 189,496.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,604.43 : 349,971.60 = 137,317.35 : x
  2. Step 2: Convert to fraction form
    253,604.43/349,971.60 = 137,317.35/x
  3. Step 3: Cross multiply
    253,604.43x = 349,971.60 × 137,317.35
  4. Step 4: Simplify right side
    253,604.43x = 48,057,172,687.26
  5. Step 5: Solve for x
    x = 48,057,172,687.26/253,604.43
  6. Step 6: Final answer
    x = 189,496.58

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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.