Home / 315,723.75-435,718.88-179,769.57

Finding the Fourth Proportional to 315,723.75, 435,718.88 and 179,769.57

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Solution

The fourth proportional to 315,723.75, 435,718.88 and 179,769.57 is: 248,093.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,723.75 : 435,718.88 = 179,769.57 : x
  2. Step 2: Convert to fraction form
    315,723.75/435,718.88 = 179,769.57/x
  3. Step 3: Cross multiply
    315,723.75x = 435,718.88 × 179,769.57
  4. Step 4: Simplify right side
    315,723.75x = 78,328,995,698.48
  5. Step 5: Solve for x
    x = 78,328,995,698.48/315,723.75
  6. Step 6: Final answer
    x = 248,093.45

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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.