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Finding the Fourth Proportional to 271,999.45, 375,351.79 and 151,137.64

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Solution

The fourth proportional to 271,999.45, 375,351.79 and 151,137.64 is: 208,565.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,999.45 : 375,351.79 = 151,137.64 : x
  2. Step 2: Convert to fraction form
    271,999.45/375,351.79 = 151,137.64/x
  3. Step 3: Cross multiply
    271,999.45x = 375,351.79 × 151,137.64
  4. Step 4: Simplify right side
    271,999.45x = 56,729,783,710.38
  5. Step 5: Solve for x
    x = 56,729,783,710.38/271,999.45
  6. Step 6: Final answer
    x = 208,565.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.