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Finding the Fourth Proportional to 758.03, 1,136.81 and 295.77

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Solution

The fourth proportional to 758.03, 1,136.81 and 295.77 is: 443.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    758.03 : 1,136.81 = 295.77 : x
  2. Step 2: Convert to fraction form
    758.03/1,136.81 = 295.77/x
  3. Step 3: Cross multiply
    758.03x = 1,136.81 × 295.77
  4. Step 4: Simplify right side
    758.03x = 336,232.81
  5. Step 5: Solve for x
    x = 336,232.81/758.03
  6. Step 6: Final answer
    x = 443.56

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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.