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Finding the Fourth Proportional to 569.75, 786.26 and 348.82

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Solution

The fourth proportional to 569.75, 786.26 and 348.82 is: 481.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.75 : 786.26 = 348.82 : x
  2. Step 2: Convert to fraction form
    569.75/786.26 = 348.82/x
  3. Step 3: Cross multiply
    569.75x = 786.26 × 348.82
  4. Step 4: Simplify right side
    569.75x = 274,262.12
  5. Step 5: Solve for x
    x = 274,262.12/569.75
  6. Step 6: Final answer
    x = 481.38

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Double scale
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1.5x scale

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.