Finding the Fourth Proportional to 408.74, 563.99 and 268.91
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Solution
The fourth proportional to 408.74, 563.99 and 268.91 is: 371.05
Step by Step Solution
- Step 1: Write the proportion equation
408.74 : 563.99 = 268.91 : x - Step 2: Convert to fraction form
408.74/563.99 = 268.91/x - Step 3: Cross multiply
408.74x = 563.99 × 268.91 - Step 4: Simplify right side
408.74x = 151,663.93 - Step 5: Solve for x
x = 151,663.93/408.74 - Step 6: Final answer
x = 371.05
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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.