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Finding the Fourth Proportional to 220,191.40, 330,287.10 and 164,422.90

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Solution

The fourth proportional to 220,191.40, 330,287.10 and 164,422.90 is: 246,634.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,191.40 : 330,287.10 = 164,422.90 : x
  2. Step 2: Convert to fraction form
    220,191.40/330,287.10 = 164,422.90/x
  3. Step 3: Cross multiply
    220,191.40x = 330,287.10 × 164,422.90
  4. Step 4: Simplify right side
    220,191.40x = 54,306,762,814.59
  5. Step 5: Solve for x
    x = 54,306,762,814.59/220,191.40
  6. Step 6: Final answer
    x = 246,634.35

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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.