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Finding the Fourth Proportional to 171,374.57, 257,106.22 and 100,357.21

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Solution

The fourth proportional to 171,374.57, 257,106.22 and 100,357.21 is: 150,561.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,374.57 : 257,106.22 = 100,357.21 : x
  2. Step 2: Convert to fraction form
    171,374.57/257,106.22 = 100,357.21/x
  3. Step 3: Cross multiply
    171,374.57x = 257,106.22 × 100,357.21
  4. Step 4: Simplify right side
    171,374.57x = 25,802,462,983.34
  5. Step 5: Solve for x
    x = 25,802,462,983.34/171,374.57
  6. Step 6: Final answer
    x = 150,561.80

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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.