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Finding the Fourth Proportional to 600.20, 899.80 and 253.80

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Solution

The fourth proportional to 600.20, 899.80 and 253.80 is: 380.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    600.20 : 899.80 = 253.80 : x
  2. Step 2: Convert to fraction form
    600.20/899.80 = 253.80/x
  3. Step 3: Cross multiply
    600.20x = 899.80 × 253.80
  4. Step 4: Simplify right side
    600.20x = 228,369.24
  5. Step 5: Solve for x
    x = 228,369.24/600.20
  6. Step 6: Final answer
    x = 380.49

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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.