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Finding the Fourth Proportional to 171,477.68, 257,216.54 and 71,583.36

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Solution

The fourth proportional to 171,477.68, 257,216.54 and 71,583.36 is: 107,375.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,477.68 : 257,216.54 = 71,583.36 : x
  2. Step 2: Convert to fraction form
    171,477.68/257,216.54 = 71,583.36/x
  3. Step 3: Cross multiply
    171,477.68x = 257,216.54 × 71,583.36
  4. Step 4: Simplify right side
    171,477.68x = 18,412,424,180.77
  5. Step 5: Solve for x
    x = 18,412,424,180.77/171,477.68
  6. Step 6: Final answer
    x = 107,375.05

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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.