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Finding the Fourth Proportional to 273,977.50, 378,093.23 and 153,126.61

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Solution

The fourth proportional to 273,977.50, 378,093.23 and 153,126.61 is: 211,317.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,977.50 : 378,093.23 = 153,126.61 : x
  2. Step 2: Convert to fraction form
    273,977.50/378,093.23 = 153,126.61/x
  3. Step 3: Cross multiply
    273,977.50x = 378,093.23 × 153,126.61
  4. Step 4: Simplify right side
    273,977.50x = 57,896,134,573.85
  5. Step 5: Solve for x
    x = 57,896,134,573.85/273,977.50
  6. Step 6: Final answer
    x = 211,317.11

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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.