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Finding the Fourth Proportional to 400,216.80, 600,325.20 and 163,729.20

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Solution

The fourth proportional to 400,216.80, 600,325.20 and 163,729.20 is: 245,593.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,216.80 : 600,325.20 = 163,729.20 : x
  2. Step 2: Convert to fraction form
    400,216.80/600,325.20 = 163,729.20/x
  3. Step 3: Cross multiply
    400,216.80x = 600,325.20 × 163,729.20
  4. Step 4: Simplify right side
    400,216.80x = 98,290,764,735.84
  5. Step 5: Solve for x
    x = 98,290,764,735.84/400,216.80
  6. Step 6: Final answer
    x = 245,593.80

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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.