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Finding the Fourth Proportional to 617.55, 926.31 and 252.26

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Solution

The fourth proportional to 617.55, 926.31 and 252.26 is: 378.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.55 : 926.31 = 252.26 : x
  2. Step 2: Convert to fraction form
    617.55/926.31 = 252.26/x
  3. Step 3: Cross multiply
    617.55x = 926.31 × 252.26
  4. Step 4: Simplify right side
    617.55x = 233,666.33
  5. Step 5: Solve for x
    x = 233,666.33/617.55
  6. Step 6: Final answer
    x = 378.38

Related Problems

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Half scale
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Double scale
Find fourth proportional to 618.55, 927.81 and 253.26
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.