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Finding the Fourth Proportional to 171,460.80, 257,191.20 and 53,131.20

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Solution

The fourth proportional to 171,460.80, 257,191.20 and 53,131.20 is: 79,696.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,460.80 : 257,191.20 = 53,131.20 : x
  2. Step 2: Convert to fraction form
    171,460.80/257,191.20 = 53,131.20/x
  3. Step 3: Cross multiply
    171,460.80x = 257,191.20 × 53,131.20
  4. Step 4: Simplify right side
    171,460.80x = 13,664,877,085.44
  5. Step 5: Solve for x
    x = 13,664,877,085.44/171,460.80
  6. Step 6: Final answer
    x = 79,696.80

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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.