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Finding the Fourth Proportional to 355,912.74, 490,946.13 and 235,054.26

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Solution

The fourth proportional to 355,912.74, 490,946.13 and 235,054.26 is: 324,233.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,912.74 : 490,946.13 = 235,054.26 : x
  2. Step 2: Convert to fraction form
    355,912.74/490,946.13 = 235,054.26/x
  3. Step 3: Cross multiply
    355,912.74x = 490,946.13 × 235,054.26
  4. Step 4: Simplify right side
    355,912.74x = 115,398,979,287.01
  5. Step 5: Solve for x
    x = 115,398,979,287.01/355,912.74
  6. Step 6: Final answer
    x = 324,233.91

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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.