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Finding the Fourth Proportional to 273,908, 378,010.62 and 153,049.64

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Solution

The fourth proportional to 273,908, 378,010.62 and 153,049.64 is: 211,218.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,908 : 378,010.62 = 153,049.64 : x
  2. Step 2: Convert to fraction form
    273,908/378,010.62 = 153,049.64/x
  3. Step 3: Cross multiply
    273,908x = 378,010.62 × 153,049.64
  4. Step 4: Simplify right side
    273,908x = 57,854,389,307.18
  5. Step 5: Solve for x
    x = 57,854,389,307.18/273,908
  6. Step 6: Final answer
    x = 211,218.33

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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.