Finding the Fourth Proportional to 639.14, 957.93 and 292
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Solution
The fourth proportional to 639.14, 957.93 and 292 is: 437.64
Step by Step Solution
- Step 1: Write the proportion equation
639.14 : 957.93 = 292 : x - Step 2: Convert to fraction form
639.14/957.93 = 292/x - Step 3: Cross multiply
639.14x = 957.93 × 292 - Step 4: Simplify right side
639.14x = 279,715.56 - Step 5: Solve for x
x = 279,715.56/639.14 - Step 6: Final answer
x = 437.64
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.