Finding the Fourth Proportional to 428, 642.08 and 184.44
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Solution
The fourth proportional to 428, 642.08 and 184.44 is: 276.69
Step by Step Solution
- Step 1: Write the proportion equation
428 : 642.08 = 184.44 : x - Step 2: Convert to fraction form
428/642.08 = 184.44/x - Step 3: Cross multiply
428x = 642.08 × 184.44 - Step 4: Simplify right side
428x = 118,425.24 - Step 5: Solve for x
x = 118,425.24/428 - Step 6: Final answer
x = 276.69
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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.