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Finding the Fourth Proportional to 617.90, 926.26 and 227.81

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Solution

The fourth proportional to 617.90, 926.26 and 227.81 is: 341.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.90 : 926.26 = 227.81 : x
  2. Step 2: Convert to fraction form
    617.90/926.26 = 227.81/x
  3. Step 3: Cross multiply
    617.90x = 926.26 × 227.81
  4. Step 4: Simplify right side
    617.90x = 211,011.29
  5. Step 5: Solve for x
    x = 211,011.29/617.90
  6. Step 6: Final answer
    x = 341.50

Related Problems

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Half scale
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Double scale
Find fourth proportional to 618.90, 927.76 and 228.81
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.