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Finding the Fourth Proportional to 263,080.80, 394,621.20 and 163,353.60

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Solution

The fourth proportional to 263,080.80, 394,621.20 and 163,353.60 is: 245,030.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,080.80 : 394,621.20 = 163,353.60 : x
  2. Step 2: Convert to fraction form
    263,080.80/394,621.20 = 163,353.60/x
  3. Step 3: Cross multiply
    263,080.80x = 394,621.20 × 163,353.60
  4. Step 4: Simplify right side
    263,080.80x = 64,462,793,656.32
  5. Step 5: Solve for x
    x = 64,462,793,656.32/263,080.80
  6. Step 6: Final answer
    x = 245,030.40

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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.