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Finding the Fourth Proportional to 251,651.15, 377,476.67 and 91,739.07

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Solution

The fourth proportional to 251,651.15, 377,476.67 and 91,739.07 is: 137,608.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,651.15 : 377,476.67 = 91,739.07 : x
  2. Step 2: Convert to fraction form
    251,651.15/377,476.67 = 91,739.07/x
  3. Step 3: Cross multiply
    251,651.15x = 377,476.67 × 91,739.07
  4. Step 4: Simplify right side
    251,651.15x = 34,629,358,193.80
  5. Step 5: Solve for x
    x = 34,629,358,193.80/251,651.15
  6. Step 6: Final answer
    x = 137,608.59

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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.