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Finding the Fourth Proportional to 171,804.50, 257,743.79 and 51,851.43

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Solution

The fourth proportional to 171,804.50, 257,743.79 and 51,851.43 is: 77,788.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,804.50 : 257,743.79 = 51,851.43 : x
  2. Step 2: Convert to fraction form
    171,804.50/257,743.79 = 51,851.43/x
  3. Step 3: Cross multiply
    171,804.50x = 257,743.79 × 51,851.43
  4. Step 4: Simplify right side
    171,804.50x = 13,364,384,085.12
  5. Step 5: Solve for x
    x = 13,364,384,085.12/171,804.50
  6. Step 6: Final answer
    x = 77,788.32

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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.