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Finding the Fourth Proportional to 220,707.75, 304,609.50 and 130,034.73

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Solution

The fourth proportional to 220,707.75, 304,609.50 and 130,034.73 is: 179,467.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,707.75 : 304,609.50 = 130,034.73 : x
  2. Step 2: Convert to fraction form
    220,707.75/304,609.50 = 130,034.73/x
  3. Step 3: Cross multiply
    220,707.75x = 304,609.50 × 130,034.73
  4. Step 4: Simplify right side
    220,707.75x = 39,609,814,087.94
  5. Step 5: Solve for x
    x = 39,609,814,087.94/220,707.75
  6. Step 6: Final answer
    x = 179,467.26

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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.