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Finding the Fourth Proportional to 1,160.62, 1,741.23 and 338.86

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Solution

The fourth proportional to 1,160.62, 1,741.23 and 338.86 is: 508.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,160.62 : 1,741.23 = 338.86 : x
  2. Step 2: Convert to fraction form
    1,160.62/1,741.23 = 338.86/x
  3. Step 3: Cross multiply
    1,160.62x = 1,741.23 × 338.86
  4. Step 4: Simplify right side
    1,160.62x = 590,033.20
  5. Step 5: Solve for x
    x = 590,033.20/1,160.62
  6. Step 6: Final answer
    x = 508.38

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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.