Home / 305,575.20-421,744.32-178,250.67

Finding the Fourth Proportional to 305,575.20, 421,744.32 and 178,250.67

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Solution

The fourth proportional to 305,575.20, 421,744.32 and 178,250.67 is: 246,015.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,575.20 : 421,744.32 = 178,250.67 : x
  2. Step 2: Convert to fraction form
    305,575.20/421,744.32 = 178,250.67/x
  3. Step 3: Cross multiply
    305,575.20x = 421,744.32 × 178,250.67
  4. Step 4: Simplify right side
    305,575.20x = 75,176,207,608.69
  5. Step 5: Solve for x
    x = 75,176,207,608.69/305,575.20
  6. Step 6: Final answer
    x = 246,015.41

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1.5x scale

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.