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Finding the Fourth Proportional to 1,158.57, 1,737.94 and 336.90

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Solution

The fourth proportional to 1,158.57, 1,737.94 and 336.90 is: 505.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158.57 : 1,737.94 = 336.90 : x
  2. Step 2: Convert to fraction form
    1,158.57/1,737.94 = 336.90/x
  3. Step 3: Cross multiply
    1,158.57x = 1,737.94 × 336.90
  4. Step 4: Simplify right side
    1,158.57x = 585,517.66
  5. Step 5: Solve for x
    x = 585,517.66/1,158.57
  6. Step 6: Final answer
    x = 505.38

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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.