Home / 220,815.44-304,730.76-120,218.96

Finding the Fourth Proportional to 220,815.44, 304,730.76 and 120,218.96

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Solution

The fourth proportional to 220,815.44, 304,730.76 and 120,218.96 is: 165,905.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,815.44 : 304,730.76 = 120,218.96 : x
  2. Step 2: Convert to fraction form
    220,815.44/304,730.76 = 120,218.96/x
  3. Step 3: Cross multiply
    220,815.44x = 304,730.76 × 120,218.96
  4. Step 4: Simplify right side
    220,815.44x = 36,634,415,047.21
  5. Step 5: Solve for x
    x = 36,634,415,047.21/220,815.44
  6. Step 6: Final answer
    x = 165,905.13

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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.