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Finding the Fourth Proportional to 622.91, 934.50 and 190.10

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Solution

The fourth proportional to 622.91, 934.50 and 190.10 is: 285.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.91 : 934.50 = 190.10 : x
  2. Step 2: Convert to fraction form
    622.91/934.50 = 190.10/x
  3. Step 3: Cross multiply
    622.91x = 934.50 × 190.10
  4. Step 4: Simplify right side
    622.91x = 177,643.78
  5. Step 5: Solve for x
    x = 177,643.78/622.91
  6. Step 6: Final answer
    x = 285.19

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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.