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Finding the Fourth Proportional to 1,157.55, 1,736.43 and 335.81

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Solution

The fourth proportional to 1,157.55, 1,736.43 and 335.81 is: 503.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157.55 : 1,736.43 = 335.81 : x
  2. Step 2: Convert to fraction form
    1,157.55/1,736.43 = 335.81/x
  3. Step 3: Cross multiply
    1,157.55x = 1,736.43 × 335.81
  4. Step 4: Simplify right side
    1,157.55x = 583,101.88
  5. Step 5: Solve for x
    x = 583,101.88/1,157.55
  6. Step 6: Final answer
    x = 503.74

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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.