Home / 312,845.58-431,721.27-176,877.18

Finding the Fourth Proportional to 312,845.58, 431,721.27 and 176,877.18

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Solution

The fourth proportional to 312,845.58, 431,721.27 and 176,877.18 is: 244,087.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,845.58 : 431,721.27 = 176,877.18 : x
  2. Step 2: Convert to fraction form
    312,845.58/431,721.27 = 176,877.18/x
  3. Step 3: Cross multiply
    312,845.58x = 431,721.27 × 176,877.18
  4. Step 4: Simplify right side
    312,845.58x = 76,361,640,783.62
  5. Step 5: Solve for x
    x = 76,361,640,783.62/312,845.58
  6. Step 6: Final answer
    x = 244,087.33

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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.