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Finding the Fourth Proportional to 230,469, 318,047.24 and 124,485

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Solution

The fourth proportional to 230,469, 318,047.24 and 124,485 is: 171,789.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,469 : 318,047.24 = 124,485 : x
  2. Step 2: Convert to fraction form
    230,469/318,047.24 = 124,485/x
  3. Step 3: Cross multiply
    230,469x = 318,047.24 × 124,485
  4. Step 4: Simplify right side
    230,469x = 39,592,110,671.40
  5. Step 5: Solve for x
    x = 39,592,110,671.40/230,469
  6. Step 6: Final answer
    x = 171,789.31

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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.