Finding the Fourth Proportional to 272.79, 376.05 and 207.18
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Solution
The fourth proportional to 272.79, 376.05 and 207.18 is: 285.60
Step by Step Solution
- Step 1: Write the proportion equation
272.79 : 376.05 = 207.18 : x - Step 2: Convert to fraction form
272.79/376.05 = 207.18/x - Step 3: Cross multiply
272.79x = 376.05 × 207.18 - Step 4: Simplify right side
272.79x = 77,908.24 - Step 5: Solve for x
x = 77,908.24/272.79 - Step 6: Final answer
x = 285.60
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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.