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Finding the Fourth Proportional to 251,576.61, 377,366.91 and 91,767.05

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Solution

The fourth proportional to 251,576.61, 377,366.91 and 91,767.05 is: 137,651.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,576.61 : 377,366.91 = 91,767.05 : x
  2. Step 2: Convert to fraction form
    251,576.61/377,366.91 = 91,767.05/x
  3. Step 3: Cross multiply
    251,576.61x = 377,366.91 × 91,767.05
  4. Step 4: Simplify right side
    251,576.61x = 34,629,848,098.32
  5. Step 5: Solve for x
    x = 34,629,848,098.32/251,576.61
  6. Step 6: Final answer
    x = 137,651.30

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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.