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Finding the Fourth Proportional to 606.70, 837.22 and 330.70

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Solution

The fourth proportional to 606.70, 837.22 and 330.70 is: 456.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.70 : 837.22 = 330.70 : x
  2. Step 2: Convert to fraction form
    606.70/837.22 = 330.70/x
  3. Step 3: Cross multiply
    606.70x = 837.22 × 330.70
  4. Step 4: Simplify right side
    606.70x = 276,868.65
  5. Step 5: Solve for x
    x = 276,868.65/606.70
  6. Step 6: Final answer
    x = 456.35

Related Problems

Find fourth proportional to 303.35, 418.61 and 165.35
Half scale
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Double scale
Find fourth proportional to 607.70, 838.60 and 331.70
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.