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Finding the Fourth Proportional to 522.89, 784.35 and 248.85

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Solution

The fourth proportional to 522.89, 784.35 and 248.85 is: 373.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    522.89 : 784.35 = 248.85 : x
  2. Step 2: Convert to fraction form
    522.89/784.35 = 248.85/x
  3. Step 3: Cross multiply
    522.89x = 784.35 × 248.85
  4. Step 4: Simplify right side
    522.89x = 195,185.50
  5. Step 5: Solve for x
    x = 195,185.50/522.89
  6. Step 6: Final answer
    x = 373.29

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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.