Home / 317,721.86-438,440.24-179,879.33

Finding the Fourth Proportional to 317,721.86, 438,440.24 and 179,879.33

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Solution

The fourth proportional to 317,721.86, 438,440.24 and 179,879.33 is: 248,224.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,721.86 : 438,440.24 = 179,879.33 : x
  2. Step 2: Convert to fraction form
    317,721.86/438,440.24 = 179,879.33/x
  3. Step 3: Cross multiply
    317,721.86x = 438,440.24 × 179,879.33
  4. Step 4: Simplify right side
    317,721.86x = 78,866,338,162.04
  5. Step 5: Solve for x
    x = 78,866,338,162.04/317,721.86
  6. Step 6: Final answer
    x = 248,224.46

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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.