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Finding the Fourth Proportional to 617.49, 926.44 and 206.93

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Solution

The fourth proportional to 617.49, 926.44 and 206.93 is: 310.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.49 : 926.44 = 206.93 : x
  2. Step 2: Convert to fraction form
    617.49/926.44 = 206.93/x
  3. Step 3: Cross multiply
    617.49x = 926.44 × 206.93
  4. Step 4: Simplify right side
    617.49x = 191,708.23
  5. Step 5: Solve for x
    x = 191,708.23/617.49
  6. Step 6: Final answer
    x = 310.46

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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.