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Finding the Fourth Proportional to 601.05, 901.56 and 190.21

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Solution

The fourth proportional to 601.05, 901.56 and 190.21 is: 285.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.05 : 901.56 = 190.21 : x
  2. Step 2: Convert to fraction form
    601.05/901.56 = 190.21/x
  3. Step 3: Cross multiply
    601.05x = 901.56 × 190.21
  4. Step 4: Simplify right side
    601.05x = 171,485.73
  5. Step 5: Solve for x
    x = 171,485.73/601.05
  6. Step 6: Final answer
    x = 285.31

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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.