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Finding the Fourth Proportional to 623.26, 934.99 and 190.31

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Solution

The fourth proportional to 623.26, 934.99 and 190.31 is: 285.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.26 : 934.99 = 190.31 : x
  2. Step 2: Convert to fraction form
    623.26/934.99 = 190.31/x
  3. Step 3: Cross multiply
    623.26x = 934.99 × 190.31
  4. Step 4: Simplify right side
    623.26x = 177,939.81
  5. Step 5: Solve for x
    x = 177,939.81/623.26
  6. Step 6: Final answer
    x = 285.50

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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.