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Finding the Fourth Proportional to 222,017.94, 306,380.16 and 121,415.94

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Solution

The fourth proportional to 222,017.94, 306,380.16 and 121,415.94 is: 167,551.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,017.94 : 306,380.16 = 121,415.94 : x
  2. Step 2: Convert to fraction form
    222,017.94/306,380.16 = 121,415.94/x
  3. Step 3: Cross multiply
    222,017.94x = 306,380.16 × 121,415.94
  4. Step 4: Simplify right side
    222,017.94x = 37,199,435,123.75
  5. Step 5: Solve for x
    x = 37,199,435,123.75/222,017.94
  6. Step 6: Final answer
    x = 167,551.48

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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.