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Finding the Fourth Proportional to 247,631.94, 371,429.74 and 79,107.01

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Solution

The fourth proportional to 247,631.94, 371,429.74 and 79,107.01 is: 118,654.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,631.94 : 371,429.74 = 79,107.01 : x
  2. Step 2: Convert to fraction form
    247,631.94/371,429.74 = 79,107.01/x
  3. Step 3: Cross multiply
    247,631.94x = 371,429.74 × 79,107.01
  4. Step 4: Simplify right side
    247,631.94x = 29,382,695,326.79
  5. Step 5: Solve for x
    x = 29,382,695,326.79/247,631.94
  6. Step 6: Final answer
    x = 118,654.71

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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.