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Finding the Fourth Proportional to 273,961.82, 378,068.72 and 153,105.13

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Solution

The fourth proportional to 273,961.82, 378,068.72 and 153,105.13 is: 211,285.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,961.82 : 378,068.72 = 153,105.13 : x
  2. Step 2: Convert to fraction form
    273,961.82/378,068.72 = 153,105.13/x
  3. Step 3: Cross multiply
    273,961.82x = 378,068.72 × 153,105.13
  4. Step 4: Simplify right side
    273,961.82x = 57,884,257,868.66
  5. Step 5: Solve for x
    x = 57,884,257,868.66/273,961.82
  6. Step 6: Final answer
    x = 211,285.86

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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.