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Finding the Fourth Proportional to 569.93, 786.52 and 349.01

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Solution

The fourth proportional to 569.93, 786.52 and 349.01 is: 481.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.93 : 786.52 = 349.01 : x
  2. Step 2: Convert to fraction form
    569.93/786.52 = 349.01/x
  3. Step 3: Cross multiply
    569.93x = 786.52 × 349.01
  4. Step 4: Simplify right side
    569.93x = 274,499.85
  5. Step 5: Solve for x
    x = 274,499.85/569.93
  6. Step 6: Final answer
    x = 481.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.