Home / 315,738.98-435,719.61-179,765.90

Finding the Fourth Proportional to 315,738.98, 435,719.61 and 179,765.90

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Solution

The fourth proportional to 315,738.98, 435,719.61 and 179,765.90 is: 248,076.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,738.98 : 435,719.61 = 179,765.90 : x
  2. Step 2: Convert to fraction form
    315,738.98/435,719.61 = 179,765.90/x
  3. Step 3: Cross multiply
    315,738.98x = 435,719.61 × 179,765.90
  4. Step 4: Simplify right side
    315,738.98x = 78,327,527,839.30
  5. Step 5: Solve for x
    x = 78,327,527,839.30/315,738.98
  6. Step 6: Final answer
    x = 248,076.84

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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.