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Finding the Fourth Proportional to 221,612.04, 305,824.14 and 121,010.04

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Solution

The fourth proportional to 221,612.04, 305,824.14 and 121,010.04 is: 166,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,612.04 : 305,824.14 = 121,010.04 : x
  2. Step 2: Convert to fraction form
    221,612.04/305,824.14 = 121,010.04/x
  3. Step 3: Cross multiply
    221,612.04x = 305,824.14 × 121,010.04
  4. Step 4: Simplify right side
    221,612.04x = 37,007,791,414.37
  5. Step 5: Solve for x
    x = 37,007,791,414.37/221,612.04
  6. Step 6: Final answer
    x = 166,993.60

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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.