Home / 221,233.23-305,301.83-120,631.23

Finding the Fourth Proportional to 221,233.23, 305,301.83 and 120,631.23

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Solution

The fourth proportional to 221,233.23, 305,301.83 and 120,631.23 is: 166,471.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,233.23 : 305,301.83 = 120,631.23 : x
  2. Step 2: Convert to fraction form
    221,233.23/305,301.83 = 120,631.23/x
  3. Step 3: Cross multiply
    221,233.23x = 305,301.83 × 120,631.23
  4. Step 4: Simplify right side
    221,233.23x = 36,828,934,670.99
  5. Step 5: Solve for x
    x = 36,828,934,670.99/221,233.23
  6. Step 6: Final answer
    x = 166,471.08

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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.