Home / 218,632.22-327,985.80-100,313.72

Finding the Fourth Proportional to 218,632.22, 327,985.80 and 100,313.72

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Solution

The fourth proportional to 218,632.22, 327,985.80 and 100,313.72 is: 150,487.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,632.22 : 327,985.80 = 100,313.72 : x
  2. Step 2: Convert to fraction form
    218,632.22/327,985.80 = 100,313.72/x
  3. Step 3: Cross multiply
    218,632.22x = 327,985.80 × 100,313.72
  4. Step 4: Simplify right side
    218,632.22x = 32,901,475,705.18
  5. Step 5: Solve for x
    x = 32,901,475,705.18/218,632.22
  6. Step 6: Final answer
    x = 150,487.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.