Home / 223,827.24-308,908.26-128,333.64

Finding the Fourth Proportional to 223,827.24, 308,908.26 and 128,333.64

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Solution

The fourth proportional to 223,827.24, 308,908.26 and 128,333.64 is: 177,115.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,827.24 : 308,908.26 = 128,333.64 : x
  2. Step 2: Convert to fraction form
    223,827.24/308,908.26 = 128,333.64/x
  3. Step 3: Cross multiply
    223,827.24x = 308,908.26 × 128,333.64
  4. Step 4: Simplify right side
    223,827.24x = 39,643,321,431.87
  5. Step 5: Solve for x
    x = 39,643,321,431.87/223,827.24
  6. Step 6: Final answer
    x = 177,115.71

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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.