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Finding the Fourth Proportional to 250,634.88, 345,881.52 and 137,457.36

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Solution

The fourth proportional to 250,634.88, 345,881.52 and 137,457.36 is: 189,694.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,634.88 : 345,881.52 = 137,457.36 : x
  2. Step 2: Convert to fraction form
    250,634.88/345,881.52 = 137,457.36/x
  3. Step 3: Cross multiply
    250,634.88x = 345,881.52 × 137,457.36
  4. Step 4: Simplify right side
    250,634.88x = 47,543,960,611.99
  5. Step 5: Solve for x
    x = 47,543,960,611.99/250,634.88
  6. Step 6: Final answer
    x = 189,694.11

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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.