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Finding the Fourth Proportional to 584.70, 877.35 and 219.60

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Solution

The fourth proportional to 584.70, 877.35 and 219.60 is: 329.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.70 : 877.35 = 219.60 : x
  2. Step 2: Convert to fraction form
    584.70/877.35 = 219.60/x
  3. Step 3: Cross multiply
    584.70x = 877.35 × 219.60
  4. Step 4: Simplify right side
    584.70x = 192,666.06
  5. Step 5: Solve for x
    x = 192,666.06/584.70
  6. Step 6: Final answer
    x = 329.51

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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.