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Finding the Fourth Proportional to 565.54, 847.59 and 394.18

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Solution

The fourth proportional to 565.54, 847.59 and 394.18 is: 590.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    565.54 : 847.59 = 394.18 : x
  2. Step 2: Convert to fraction form
    565.54/847.59 = 394.18/x
  3. Step 3: Cross multiply
    565.54x = 847.59 × 394.18
  4. Step 4: Simplify right side
    565.54x = 334,103.03
  5. Step 5: Solve for x
    x = 334,103.03/565.54
  6. Step 6: Final answer
    x = 590.77

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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.