Home / 315,913.56-435,960.07-179,947.45

Finding the Fourth Proportional to 315,913.56, 435,960.07 and 179,947.45

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Solution

The fourth proportional to 315,913.56, 435,960.07 and 179,947.45 is: 248,327.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,913.56 : 435,960.07 = 179,947.45 : x
  2. Step 2: Convert to fraction form
    315,913.56/435,960.07 = 179,947.45/x
  3. Step 3: Cross multiply
    315,913.56x = 435,960.07 × 179,947.45
  4. Step 4: Simplify right side
    315,913.56x = 78,449,902,898.32
  5. Step 5: Solve for x
    x = 78,449,902,898.32/315,913.56
  6. Step 6: Final answer
    x = 248,327.11

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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.