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Finding the Fourth Proportional to 225,159.38, 310,717.58 and 123,183.80

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Solution

The fourth proportional to 225,159.38, 310,717.58 and 123,183.80 is: 169,992.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,159.38 : 310,717.58 = 123,183.80 : x
  2. Step 2: Convert to fraction form
    225,159.38/310,717.58 = 123,183.80/x
  3. Step 3: Cross multiply
    225,159.38x = 310,717.58 × 123,183.80
  4. Step 4: Simplify right side
    225,159.38x = 38,275,372,231.20
  5. Step 5: Solve for x
    x = 38,275,372,231.20/225,159.38
  6. Step 6: Final answer
    x = 169,992.35

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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.