Home / 315,716.23-435,640.38-179,755.91

Finding the Fourth Proportional to 315,716.23, 435,640.38 and 179,755.91

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Solution

The fourth proportional to 315,716.23, 435,640.38 and 179,755.91 is: 248,035.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,716.23 : 435,640.38 = 179,755.91 : x
  2. Step 2: Convert to fraction form
    315,716.23/435,640.38 = 179,755.91/x
  3. Step 3: Cross multiply
    315,716.23x = 435,640.38 × 179,755.91
  4. Step 4: Simplify right side
    315,716.23x = 78,308,931,721.01
  5. Step 5: Solve for x
    x = 78,308,931,721.01/315,716.23
  6. Step 6: Final answer
    x = 248,035.81

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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.