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Finding the Fourth Proportional to 533.97, 800.55 and 260.33

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Solution

The fourth proportional to 533.97, 800.55 and 260.33 is: 390.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.97 : 800.55 = 260.33 : x
  2. Step 2: Convert to fraction form
    533.97/800.55 = 260.33/x
  3. Step 3: Cross multiply
    533.97x = 800.55 × 260.33
  4. Step 4: Simplify right side
    533.97x = 208,403.18
  5. Step 5: Solve for x
    x = 208,403.18/533.97
  6. Step 6: Final answer
    x = 390.29

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Double scale
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Similar ratio
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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.