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Finding the Fourth Proportional to 220,679.85, 330,760.58 and 102,100.71

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Solution

The fourth proportional to 220,679.85, 330,760.58 and 102,100.71 is: 153,031.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,679.85 : 330,760.58 = 102,100.71 : x
  2. Step 2: Convert to fraction form
    220,679.85/330,760.58 = 102,100.71/x
  3. Step 3: Cross multiply
    220,679.85x = 330,760.58 × 102,100.71
  4. Step 4: Simplify right side
    220,679.85x = 33,770,889,547.51
  5. Step 5: Solve for x
    x = 33,770,889,547.51/220,679.85
  6. Step 6: Final answer
    x = 153,031.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.