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Finding the Fourth Proportional to 171,615.20, 257,447.10 and 53,274.20

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Solution

The fourth proportional to 171,615.20, 257,447.10 and 53,274.20 is: 79,918.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,615.20 : 257,447.10 = 53,274.20 : x
  2. Step 2: Convert to fraction form
    171,615.20/257,447.10 = 53,274.20/x
  3. Step 3: Cross multiply
    171,615.20x = 257,447.10 × 53,274.20
  4. Step 4: Simplify right side
    171,615.20x = 13,715,288,294.82
  5. Step 5: Solve for x
    x = 13,715,288,294.82/171,615.20
  6. Step 6: Final answer
    x = 79,918.84

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.