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Finding the Fourth Proportional to 220,494.91, 330,326.15 and 130,268.40

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Solution

The fourth proportional to 220,494.91, 330,326.15 and 130,268.40 is: 195,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,494.91 : 330,326.15 = 130,268.40 : x
  2. Step 2: Convert to fraction form
    220,494.91/330,326.15 = 130,268.40/x
  3. Step 3: Cross multiply
    220,494.91x = 330,326.15 × 130,268.40
  4. Step 4: Simplify right side
    220,494.91x = 43,031,059,739.44
  5. Step 5: Solve for x
    x = 43,031,059,739.44/220,494.91
  6. Step 6: Final answer
    x = 195,156.70

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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.