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Finding the Fourth Proportional to 262,964.80, 394,447.20 and 163,237.60

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Solution

The fourth proportional to 262,964.80, 394,447.20 and 163,237.60 is: 244,856.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,964.80 : 394,447.20 = 163,237.60 : x
  2. Step 2: Convert to fraction form
    262,964.80/394,447.20 = 163,237.60/x
  3. Step 3: Cross multiply
    262,964.80x = 394,447.20 × 163,237.60
  4. Step 4: Simplify right side
    262,964.80x = 64,388,614,254.72
  5. Step 5: Solve for x
    x = 64,388,614,254.72/262,964.80
  6. Step 6: Final answer
    x = 244,856.40

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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.