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Finding the Fourth Proportional to 250,699.88, 345,965.90 and 137,522.63

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Solution

The fourth proportional to 250,699.88, 345,965.90 and 137,522.63 is: 189,781.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,699.88 : 345,965.90 = 137,522.63 : x
  2. Step 2: Convert to fraction form
    250,699.88/345,965.90 = 137,522.63/x
  3. Step 3: Cross multiply
    250,699.88x = 345,965.90 × 137,522.63
  4. Step 4: Simplify right side
    250,699.88x = 47,578,140,458.32
  5. Step 5: Solve for x
    x = 47,578,140,458.32/250,699.88
  6. Step 6: Final answer
    x = 189,781.27

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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.