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Finding the Fourth Proportional to 251,637.80, 377,514.93 and 131,759.87

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Solution

The fourth proportional to 251,637.80, 377,514.93 and 131,759.87 is: 197,670.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,637.80 : 377,514.93 = 131,759.87 : x
  2. Step 2: Convert to fraction form
    251,637.80/377,514.93 = 131,759.87/x
  3. Step 3: Cross multiply
    251,637.80x = 377,514.93 × 131,759.87
  4. Step 4: Simplify right side
    251,637.80x = 49,741,317,485.47
  5. Step 5: Solve for x
    x = 49,741,317,485.47/251,637.80
  6. Step 6: Final answer
    x = 197,670.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.