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Finding the Fourth Proportional to 225,454, 311,149.20 and 124,852

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Solution

The fourth proportional to 225,454, 311,149.20 and 124,852 is: 172,308.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,454 : 311,149.20 = 124,852 : x
  2. Step 2: Convert to fraction form
    225,454/311,149.20 = 124,852/x
  3. Step 3: Cross multiply
    225,454x = 311,149.20 × 124,852
  4. Step 4: Simplify right side
    225,454x = 38,847,599,918.40
  5. Step 5: Solve for x
    x = 38,847,599,918.40/225,454
  6. Step 6: Final answer
    x = 172,308.32

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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.