Home / 218,222.65-326,908.45-123,165.31

Finding the Fourth Proportional to 218,222.65, 326,908.45 and 123,165.31

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Solution

The fourth proportional to 218,222.65, 326,908.45 and 123,165.31 is: 184,507.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,222.65 : 326,908.45 = 123,165.31 : x
  2. Step 2: Convert to fraction form
    218,222.65/326,908.45 = 123,165.31/x
  3. Step 3: Cross multiply
    218,222.65x = 326,908.45 × 123,165.31
  4. Step 4: Simplify right side
    218,222.65x = 40,263,780,585.87
  5. Step 5: Solve for x
    x = 40,263,780,585.87/218,222.65
  6. Step 6: Final answer
    x = 184,507.80

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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.