Home / 456,939.46-685,455.09-157,380.58

Finding the Fourth Proportional to 456,939.46, 685,455.09 and 157,380.58

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Solution

The fourth proportional to 456,939.46, 685,455.09 and 157,380.58 is: 236,086.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,939.46 : 685,455.09 = 157,380.58 : x
  2. Step 2: Convert to fraction form
    456,939.46/685,455.09 = 157,380.58/x
  3. Step 3: Cross multiply
    456,939.46x = 685,455.09 × 157,380.58
  4. Step 4: Simplify right side
    456,939.46x = 107,877,319,628.15
  5. Step 5: Solve for x
    x = 107,877,319,628.15/456,939.46
  6. Step 6: Final answer
    x = 236,086.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.