Home / 215,914.80-323,872.20-163,426.80

Finding the Fourth Proportional to 215,914.80, 323,872.20 and 163,426.80

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Solution

The fourth proportional to 215,914.80, 323,872.20 and 163,426.80 is: 245,140.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,914.80 : 323,872.20 = 163,426.80 : x
  2. Step 2: Convert to fraction form
    215,914.80/323,872.20 = 163,426.80/x
  3. Step 3: Cross multiply
    215,914.80x = 323,872.20 × 163,426.80
  4. Step 4: Simplify right side
    215,914.80x = 52,929,397,254.96
  5. Step 5: Solve for x
    x = 52,929,397,254.96/215,914.80
  6. Step 6: Final answer
    x = 245,140.20

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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.