Finding the Fourth Proportional to 370.99, 511.99 and 213.64
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Solution
The fourth proportional to 370.99, 511.99 and 213.64 is: 294.84
Step by Step Solution
- Step 1: Write the proportion equation
370.99 : 511.99 = 213.64 : x - Step 2: Convert to fraction form
370.99/511.99 = 213.64/x - Step 3: Cross multiply
370.99x = 511.99 × 213.64 - Step 4: Simplify right side
370.99x = 109,381.01 - Step 5: Solve for x
x = 109,381.01/370.99 - Step 6: Final answer
x = 294.84
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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.