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Finding the Fourth Proportional to 601.21, 901.20 and 235.49

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Solution

The fourth proportional to 601.21, 901.20 and 235.49 is: 352.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.21 : 901.20 = 235.49 : x
  2. Step 2: Convert to fraction form
    601.21/901.20 = 235.49/x
  3. Step 3: Cross multiply
    601.21x = 901.20 × 235.49
  4. Step 4: Simplify right side
    601.21x = 212,223.59
  5. Step 5: Solve for x
    x = 212,223.59/601.21
  6. Step 6: Final answer
    x = 352.99

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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.