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Finding the Fourth Proportional to 553.14, 829.14 and 347.25

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Solution

The fourth proportional to 553.14, 829.14 and 347.25 is: 520.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.14 : 829.14 = 347.25 : x
  2. Step 2: Convert to fraction form
    553.14/829.14 = 347.25/x
  3. Step 3: Cross multiply
    553.14x = 829.14 × 347.25
  4. Step 4: Simplify right side
    553.14x = 287,918.87
  5. Step 5: Solve for x
    x = 287,918.87/553.14
  6. Step 6: Final answer
    x = 520.52

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.