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Finding the Fourth Proportional to 225,505.49, 311,186.47 and 123,531.39

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Solution

The fourth proportional to 225,505.49, 311,186.47 and 123,531.39 is: 170,467.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,505.49 : 311,186.47 = 123,531.39 : x
  2. Step 2: Convert to fraction form
    225,505.49/311,186.47 = 123,531.39/x
  3. Step 3: Cross multiply
    225,505.49x = 311,186.47 × 123,531.39
  4. Step 4: Simplify right side
    225,505.49x = 38,441,297,188.29
  5. Step 5: Solve for x
    x = 38,441,297,188.29/225,505.49
  6. Step 6: Final answer
    x = 170,467.23

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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.