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Finding the Fourth Proportional to 1,133.00, 1,699.23 and 311.34

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Solution

The fourth proportional to 1,133.00, 1,699.23 and 311.34 is: 466.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133.00 : 1,699.23 = 311.34 : x
  2. Step 2: Convert to fraction form
    1,133.00/1,699.23 = 311.34/x
  3. Step 3: Cross multiply
    1,133.00x = 1,699.23 × 311.34
  4. Step 4: Simplify right side
    1,133.00x = 529,029.72
  5. Step 5: Solve for x
    x = 529,029.72/1,133.00
  6. Step 6: Final answer
    x = 466.93

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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.