Finding the Fourth Proportional to 671.58, 1,006.74 and 306
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Solution
The fourth proportional to 671.58, 1,006.74 and 306 is: 458.71
Step by Step Solution
- Step 1: Write the proportion equation
671.58 : 1,006.74 = 306 : x - Step 2: Convert to fraction form
671.58/1,006.74 = 306/x - Step 3: Cross multiply
671.58x = 1,006.74 × 306 - Step 4: Simplify right side
671.58x = 308,062.44 - Step 5: Solve for x
x = 308,062.44/671.58 - Step 6: Final answer
x = 458.71
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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.