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Finding the Fourth Proportional to 253,610.25, 349,979.64 and 137,323.17

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Solution

The fourth proportional to 253,610.25, 349,979.64 and 137,323.17 is: 189,504.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,610.25 : 349,979.64 = 137,323.17 : x
  2. Step 2: Convert to fraction form
    253,610.25/349,979.64 = 137,323.17/x
  3. Step 3: Cross multiply
    253,610.25x = 349,979.64 × 137,323.17
  4. Step 4: Simplify right side
    253,610.25x = 48,060,313,600.26
  5. Step 5: Solve for x
    x = 48,060,313,600.26/253,610.25
  6. Step 6: Final answer
    x = 189,504.62

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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.