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Finding the Fourth Proportional to 503.88, 758.85 and 443.68

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Solution

The fourth proportional to 503.88, 758.85 and 443.68 is: 668.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.88 : 758.85 = 443.68 : x
  2. Step 2: Convert to fraction form
    503.88/758.85 = 443.68/x
  3. Step 3: Cross multiply
    503.88x = 758.85 × 443.68
  4. Step 4: Simplify right side
    503.88x = 336,686.57
  5. Step 5: Solve for x
    x = 336,686.57/503.88
  6. Step 6: Final answer
    x = 668.19

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.