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Finding the Fourth Proportional to 220,652.56, 304,501.84 and 120,051.28

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Solution

The fourth proportional to 220,652.56, 304,501.84 and 120,051.28 is: 165,671.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,652.56 : 304,501.84 = 120,051.28 : x
  2. Step 2: Convert to fraction form
    220,652.56/304,501.84 = 120,051.28/x
  3. Step 3: Cross multiply
    220,652.56x = 304,501.84 × 120,051.28
  4. Step 4: Simplify right side
    220,652.56x = 36,555,835,654.36
  5. Step 5: Solve for x
    x = 36,555,835,654.36/220,652.56
  6. Step 6: Final answer
    x = 165,671.48

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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.