Home / 315,055.26-434,802.09-179,131.86

Finding the Fourth Proportional to 315,055.26, 434,802.09 and 179,131.86

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Solution

The fourth proportional to 315,055.26, 434,802.09 and 179,131.86 is: 247,216.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,055.26 : 434,802.09 = 179,131.86 : x
  2. Step 2: Convert to fraction form
    315,055.26/434,802.09 = 179,131.86/x
  3. Step 3: Cross multiply
    315,055.26x = 434,802.09 × 179,131.86
  4. Step 4: Simplify right side
    315,055.26x = 77,886,907,113.59
  5. Step 5: Solve for x
    x = 77,886,907,113.59/315,055.26
  6. Step 6: Final answer
    x = 247,216.65

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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.