Finding the Fourth Proportional to 427.02, 639.99 and 368.97
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Solution
The fourth proportional to 427.02, 639.99 and 368.97 is: 552.99
Step by Step Solution
- Step 1: Write the proportion equation
427.02 : 639.99 = 368.97 : x - Step 2: Convert to fraction form
427.02/639.99 = 368.97/x - Step 3: Cross multiply
427.02x = 639.99 × 368.97 - Step 4: Simplify right side
427.02x = 236,137.11 - Step 5: Solve for x
x = 236,137.11/427.02 - Step 6: Final answer
x = 552.99
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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.