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Finding the Fourth Proportional to 171,379.60, 257,069.40 and 101,222.80

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Solution

The fourth proportional to 171,379.60, 257,069.40 and 101,222.80 is: 151,834.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,379.60 : 257,069.40 = 101,222.80 : x
  2. Step 2: Convert to fraction form
    171,379.60/257,069.40 = 101,222.80/x
  3. Step 3: Cross multiply
    171,379.60x = 257,069.40 × 101,222.80
  4. Step 4: Simplify right side
    171,379.60x = 26,021,284,462.32
  5. Step 5: Solve for x
    x = 26,021,284,462.32/171,379.60
  6. Step 6: Final answer
    x = 151,834.20

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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.