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Finding the Fourth Proportional to 171,867.40, 257,282.70 and 151,131.40

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Solution

The fourth proportional to 171,867.40, 257,282.70 and 151,131.40 is: 226,241.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,867.40 : 257,282.70 = 151,131.40 : x
  2. Step 2: Convert to fraction form
    171,867.40/257,282.70 = 151,131.40/x
  3. Step 3: Cross multiply
    171,867.40x = 257,282.70 × 151,131.40
  4. Step 4: Simplify right side
    171,867.40x = 38,883,494,646.78
  5. Step 5: Solve for x
    x = 38,883,494,646.78/171,867.40
  6. Step 6: Final answer
    x = 226,241.25

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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.