Home / 218,073.11-300,941.07-121,274.85

Finding the Fourth Proportional to 218,073.11, 300,941.07 and 121,274.85

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Solution

The fourth proportional to 218,073.11, 300,941.07 and 121,274.85 is: 167,359.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,073.11 : 300,941.07 = 121,274.85 : x
  2. Step 2: Convert to fraction form
    218,073.11/300,941.07 = 121,274.85/x
  3. Step 3: Cross multiply
    218,073.11x = 300,941.07 × 121,274.85
  4. Step 4: Simplify right side
    218,073.11x = 36,496,583,796.84
  5. Step 5: Solve for x
    x = 36,496,583,796.84/218,073.11
  6. Step 6: Final answer
    x = 167,359.40

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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.