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Finding the Fourth Proportional to 220,722.48, 304,601.04 and 120,120.48

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Solution

The fourth proportional to 220,722.48, 304,601.04 and 120,120.48 is: 165,768.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,722.48 : 304,601.04 = 120,120.48 : x
  2. Step 2: Convert to fraction form
    220,722.48/304,601.04 = 120,120.48/x
  3. Step 3: Cross multiply
    220,722.48x = 304,601.04 × 120,120.48
  4. Step 4: Simplify right side
    220,722.48x = 36,588,823,133.30
  5. Step 5: Solve for x
    x = 36,588,823,133.30/220,722.48
  6. Step 6: Final answer
    x = 165,768.45

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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.