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Finding the Fourth Proportional to 171,086.20, 257,066.70 and 151,840.60

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Solution

The fourth proportional to 171,086.20, 257,066.70 and 151,840.60 is: 228,149.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,086.20 : 257,066.70 = 151,840.60 : x
  2. Step 2: Convert to fraction form
    171,086.20/257,066.70 = 151,840.60/x
  3. Step 3: Cross multiply
    171,086.20x = 257,066.70 × 151,840.60
  4. Step 4: Simplify right side
    171,086.20x = 39,033,161,968.02
  5. Step 5: Solve for x
    x = 39,033,161,968.02/171,086.20
  6. Step 6: Final answer
    x = 228,149.10

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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.