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Finding the Fourth Proportional to 253,449.48, 349,759.35 and 137,162.71

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Solution

The fourth proportional to 253,449.48, 349,759.35 and 137,162.71 is: 189,284.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,449.48 : 349,759.35 = 137,162.71 : x
  2. Step 2: Convert to fraction form
    253,449.48/349,759.35 = 137,162.71/x
  3. Step 3: Cross multiply
    253,449.48x = 349,759.35 × 137,162.71
  4. Step 4: Simplify right side
    253,449.48x = 47,973,940,293.84
  5. Step 5: Solve for x
    x = 47,973,940,293.84/253,449.48
  6. Step 6: Final answer
    x = 189,284.04

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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.