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Finding the Fourth Proportional to 225,979.11, 311,850.32 and 124,006.29

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Solution

The fourth proportional to 225,979.11, 311,850.32 and 124,006.29 is: 171,128.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,979.11 : 311,850.32 = 124,006.29 : x
  2. Step 2: Convert to fraction form
    225,979.11/311,850.32 = 124,006.29/x
  3. Step 3: Cross multiply
    225,979.11x = 311,850.32 × 124,006.29
  4. Step 4: Simplify right side
    225,979.11x = 38,671,400,598.48
  5. Step 5: Solve for x
    x = 38,671,400,598.48/225,979.11
  6. Step 6: Final answer
    x = 171,128.21

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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.