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Finding the Fourth Proportional to 599.70, 899.05 and 253.30

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Solution

The fourth proportional to 599.70, 899.05 and 253.30 is: 379.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    599.70 : 899.05 = 253.30 : x
  2. Step 2: Convert to fraction form
    599.70/899.05 = 253.30/x
  3. Step 3: Cross multiply
    599.70x = 899.05 × 253.30
  4. Step 4: Simplify right side
    599.70x = 227,729.37
  5. Step 5: Solve for x
    x = 227,729.37/599.70
  6. Step 6: Final answer
    x = 379.74

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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.