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Finding the Fourth Proportional to 584.54, 806.40 and 348.50

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Solution

The fourth proportional to 584.54, 806.40 and 348.50 is: 480.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.54 : 806.40 = 348.50 : x
  2. Step 2: Convert to fraction form
    584.54/806.40 = 348.50/x
  3. Step 3: Cross multiply
    584.54x = 806.40 × 348.50
  4. Step 4: Simplify right side
    584.54x = 281,026.37
  5. Step 5: Solve for x
    x = 281,026.37/584.54
  6. Step 6: Final answer
    x = 480.77

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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.