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Finding the Fourth Proportional to 350.70, 483.47 and 291.47

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Solution

The fourth proportional to 350.70, 483.47 and 291.47 is: 401.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.70 : 483.47 = 291.47 : x
  2. Step 2: Convert to fraction form
    350.70/483.47 = 291.47/x
  3. Step 3: Cross multiply
    350.70x = 483.47 × 291.47
  4. Step 4: Simplify right side
    350.70x = 140,914.22
  5. Step 5: Solve for x
    x = 140,914.22/350.70
  6. Step 6: Final answer
    x = 401.81

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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.