Home / 315,738.48-435,718.92-179,765.40

Finding the Fourth Proportional to 315,738.48, 435,718.92 and 179,765.40

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Solution

The fourth proportional to 315,738.48, 435,718.92 and 179,765.40 is: 248,076.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,738.48 : 435,718.92 = 179,765.40 : x
  2. Step 2: Convert to fraction form
    315,738.48/435,718.92 = 179,765.40/x
  3. Step 3: Cross multiply
    315,738.48x = 435,718.92 × 179,765.40
  4. Step 4: Simplify right side
    315,738.48x = 78,327,185,941.37
  5. Step 5: Solve for x
    x = 78,327,185,941.37/315,738.48
  6. Step 6: Final answer
    x = 248,076.15

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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.