Home / 218,114.16-300,997.20-122,621.04

Finding the Fourth Proportional to 218,114.16, 300,997.20 and 122,621.04

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Solution

The fourth proportional to 218,114.16, 300,997.20 and 122,621.04 is: 169,216.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,114.16 : 300,997.20 = 122,621.04 : x
  2. Step 2: Convert to fraction form
    218,114.16/300,997.20 = 122,621.04/x
  3. Step 3: Cross multiply
    218,114.16x = 300,997.20 × 122,621.04
  4. Step 4: Simplify right side
    218,114.16x = 36,908,589,701.09
  5. Step 5: Solve for x
    x = 36,908,589,701.09/218,114.16
  6. Step 6: Final answer
    x = 169,216.84

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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.