Finding the Fourth Proportional to 927.21, 1,390.94 and 310.99
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Solution
The fourth proportional to 927.21, 1,390.94 and 310.99 is: 466.52
Step by Step Solution
- Step 1: Write the proportion equation
927.21 : 1,390.94 = 310.99 : x - Step 2: Convert to fraction form
927.21/1,390.94 = 310.99/x - Step 3: Cross multiply
927.21x = 1,390.94 × 310.99 - Step 4: Simplify right side
927.21x = 432,567.17 - Step 5: Solve for x
x = 432,567.17/927.21 - Step 6: Final answer
x = 466.52
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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.