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Finding the Fourth Proportional to 583.07, 874.55 and 217.68

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Solution

The fourth proportional to 583.07, 874.55 and 217.68 is: 326.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.07 : 874.55 = 217.68 : x
  2. Step 2: Convert to fraction form
    583.07/874.55 = 217.68/x
  3. Step 3: Cross multiply
    583.07x = 874.55 × 217.68
  4. Step 4: Simplify right side
    583.07x = 190,370.96
  5. Step 5: Solve for x
    x = 190,370.96/583.07
  6. Step 6: Final answer
    x = 326.50

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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.