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Finding the Fourth Proportional to 225,119.36, 310,654.44 and 123,143.36

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Solution

The fourth proportional to 225,119.36, 310,654.44 and 123,143.36 is: 169,932.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,119.36 : 310,654.44 = 123,143.36 : x
  2. Step 2: Convert to fraction form
    225,119.36/310,654.44 = 123,143.36/x
  3. Step 3: Cross multiply
    225,119.36x = 310,654.44 × 123,143.36
  4. Step 4: Simplify right side
    225,119.36x = 38,255,031,540.52
  5. Step 5: Solve for x
    x = 38,255,031,540.52/225,119.36
  6. Step 6: Final answer
    x = 169,932.22

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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.