Home / 229,449.54-316,638.46-128,845.38

Finding the Fourth Proportional to 229,449.54, 316,638.46 and 128,845.38

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Solution

The fourth proportional to 229,449.54, 316,638.46 and 128,845.38 is: 177,805.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,449.54 : 316,638.46 = 128,845.38 : x
  2. Step 2: Convert to fraction form
    229,449.54/316,638.46 = 128,845.38/x
  3. Step 3: Cross multiply
    229,449.54x = 316,638.46 × 128,845.38
  4. Step 4: Simplify right side
    229,449.54x = 40,797,400,796.01
  5. Step 5: Solve for x
    x = 40,797,400,796.01/229,449.54
  6. Step 6: Final answer
    x = 177,805.55

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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.