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Finding the Fourth Proportional to 225,207.26, 310,783.34 and 123,231.54

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Solution

The fourth proportional to 225,207.26, 310,783.34 and 123,231.54 is: 170,058.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,207.26 : 310,783.34 = 123,231.54 : x
  2. Step 2: Convert to fraction form
    225,207.26/310,783.34 = 123,231.54/x
  3. Step 3: Cross multiply
    225,207.26x = 310,783.34 × 123,231.54
  4. Step 4: Simplify right side
    225,207.26x = 38,298,308,978.39
  5. Step 5: Solve for x
    x = 38,298,308,978.39/225,207.26
  6. Step 6: Final answer
    x = 170,058.06

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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.