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Finding the Fourth Proportional to 222,166.86, 306,589.59 and 121,564.86

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Solution

The fourth proportional to 222,166.86, 306,589.59 and 121,564.86 is: 167,759.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,166.86 : 306,589.59 = 121,564.86 : x
  2. Step 2: Convert to fraction form
    222,166.86/306,589.59 = 121,564.86/x
  3. Step 3: Cross multiply
    222,166.86x = 306,589.59 × 121,564.86
  4. Step 4: Simplify right side
    222,166.86x = 37,270,520,585.81
  5. Step 5: Solve for x
    x = 37,270,520,585.81/222,166.86
  6. Step 6: Final answer
    x = 167,759.14

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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.