Finding the Fourth Proportional to 392.16, 591.72 and 377.76
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Solution
The fourth proportional to 392.16, 591.72 and 377.76 is: 569.99
Step by Step Solution
- Step 1: Write the proportion equation
392.16 : 591.72 = 377.76 : x - Step 2: Convert to fraction form
392.16/591.72 = 377.76/x - Step 3: Cross multiply
392.16x = 591.72 × 377.76 - Step 4: Simplify right side
392.16x = 223,528.15 - Step 5: Solve for x
x = 223,528.15/392.16 - Step 6: Final answer
x = 569.99
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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.