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Finding the Fourth Proportional to 222,661.28, 333,920.64 and 72,860.96

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Solution

The fourth proportional to 222,661.28, 333,920.64 and 72,860.96 is: 109,268.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,661.28 : 333,920.64 = 72,860.96 : x
  2. Step 2: Convert to fraction form
    222,661.28/333,920.64 = 72,860.96/x
  3. Step 3: Cross multiply
    222,661.28x = 333,920.64 × 72,860.96
  4. Step 4: Simplify right side
    222,661.28x = 24,329,778,394.21
  5. Step 5: Solve for x
    x = 24,329,778,394.21/222,661.28
  6. Step 6: Final answer
    x = 109,268.12

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1.5x scale

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.