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Finding the Fourth Proportional to 1,183.01, 1,774.37 and 317.39

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Solution

The fourth proportional to 1,183.01, 1,774.37 and 317.39 is: 476.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,183.01 : 1,774.37 = 317.39 : x
  2. Step 2: Convert to fraction form
    1,183.01/1,774.37 = 317.39/x
  3. Step 3: Cross multiply
    1,183.01x = 1,774.37 × 317.39
  4. Step 4: Simplify right side
    1,183.01x = 563,156.84
  5. Step 5: Solve for x
    x = 563,156.84/1,183.01
  6. Step 6: Final answer
    x = 476.04

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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.