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Finding the Fourth Proportional to 221,062.92, 305,066.75 and 120,460.92

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Solution

The fourth proportional to 221,062.92, 305,066.75 and 120,460.92 is: 166,236.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,062.92 : 305,066.75 = 120,460.92 : x
  2. Step 2: Convert to fraction form
    221,062.92/305,066.75 = 120,460.92/x
  3. Step 3: Cross multiply
    221,062.92x = 305,066.75 × 120,460.92
  4. Step 4: Simplify right side
    221,062.92x = 36,748,621,366.41
  5. Step 5: Solve for x
    x = 36,748,621,366.41/221,062.92
  6. Step 6: Final answer
    x = 166,236.03

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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.