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Finding the Fourth Proportional to 273,992.88, 378,108.78 and 153,134.10

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Solution

The fourth proportional to 273,992.88, 378,108.78 and 153,134.10 is: 211,324.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,992.88 : 378,108.78 = 153,134.10 : x
  2. Step 2: Convert to fraction form
    273,992.88/378,108.78 = 153,134.10/x
  3. Step 3: Cross multiply
    273,992.88x = 378,108.78 × 153,134.10
  4. Step 4: Simplify right side
    273,992.88x = 57,901,347,727.40
  5. Step 5: Solve for x
    x = 57,901,347,727.40/273,992.88
  6. Step 6: Final answer
    x = 211,324.28

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1.5x scale

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.