Finding the Fourth Proportional to 665.67, 918.62 and 370.88
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Solution
The fourth proportional to 665.67, 918.62 and 370.88 is: 511.81
Step by Step Solution
- Step 1: Write the proportion equation
665.67 : 918.62 = 370.88 : x - Step 2: Convert to fraction form
665.67/918.62 = 370.88/x - Step 3: Cross multiply
665.67x = 918.62 × 370.88 - Step 4: Simplify right side
665.67x = 340,695.13 - Step 5: Solve for x
x = 340,695.13/665.67 - Step 6: Final answer
x = 511.81
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.