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Finding the Fourth Proportional to 172,477.26, 258,715.90 and 47,818.26

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Solution

The fourth proportional to 172,477.26, 258,715.90 and 47,818.26 is: 71,727.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,477.26 : 258,715.90 = 47,818.26 : x
  2. Step 2: Convert to fraction form
    172,477.26/258,715.90 = 47,818.26/x
  3. Step 3: Cross multiply
    172,477.26x = 258,715.90 × 47,818.26
  4. Step 4: Simplify right side
    172,477.26x = 12,371,344,172.33
  5. Step 5: Solve for x
    x = 12,371,344,172.33/172,477.26
  6. Step 6: Final answer
    x = 71,727.39

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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.