Home / 315,913.68-435,960.25-179,947.58

Finding the Fourth Proportional to 315,913.68, 435,960.25 and 179,947.58

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Solution

The fourth proportional to 315,913.68, 435,960.25 and 179,947.58 is: 248,327.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,913.68 : 435,960.25 = 179,947.58 : x
  2. Step 2: Convert to fraction form
    315,913.68/435,960.25 = 179,947.58/x
  3. Step 3: Cross multiply
    315,913.68x = 435,960.25 × 179,947.58
  4. Step 4: Simplify right side
    315,913.68x = 78,449,989,334.02
  5. Step 5: Solve for x
    x = 78,449,989,334.02/315,913.68
  6. Step 6: Final answer
    x = 248,327.29

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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.