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Finding the Fourth Proportional to 171,690.66, 257,530.41 and 51,748.26

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Solution

The fourth proportional to 171,690.66, 257,530.41 and 51,748.26 is: 77,620.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,690.66 : 257,530.41 = 51,748.26 : x
  2. Step 2: Convert to fraction form
    171,690.66/257,530.41 = 51,748.26/x
  3. Step 3: Cross multiply
    171,690.66x = 257,530.41 × 51,748.26
  4. Step 4: Simplify right side
    171,690.66x = 13,326,750,614.59
  5. Step 5: Solve for x
    x = 13,326,750,614.59/171,690.66
  6. Step 6: Final answer
    x = 77,620.71

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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.