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Finding the Fourth Proportional to 561.93, 775.85 and 352.19

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Solution

The fourth proportional to 561.93, 775.85 and 352.19 is: 486.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    561.93 : 775.85 = 352.19 : x
  2. Step 2: Convert to fraction form
    561.93/775.85 = 352.19/x
  3. Step 3: Cross multiply
    561.93x = 775.85 × 352.19
  4. Step 4: Simplify right side
    561.93x = 273,246.61
  5. Step 5: Solve for x
    x = 273,246.61/561.93
  6. Step 6: Final answer
    x = 486.26

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Double scale
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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.