Finding the Fourth Proportional to 370.62, 511.08 and 318.34
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Solution
The fourth proportional to 370.62, 511.08 and 318.34 is: 438.98
Step by Step Solution
- Step 1: Write the proportion equation
370.62 : 511.08 = 318.34 : x - Step 2: Convert to fraction form
370.62/511.08 = 318.34/x - Step 3: Cross multiply
370.62x = 511.08 × 318.34 - Step 4: Simplify right side
370.62x = 162,697.05 - Step 5: Solve for x
x = 162,697.05/370.62 - Step 6: Final answer
x = 438.98
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.