Finding the Fourth Proportional to 497.95, 687.28 and 322.99
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Solution
The fourth proportional to 497.95, 687.28 and 322.99 is: 445.80
Step by Step Solution
- Step 1: Write the proportion equation
497.95 : 687.28 = 322.99 : x - Step 2: Convert to fraction form
497.95/687.28 = 322.99/x - Step 3: Cross multiply
497.95x = 687.28 × 322.99 - Step 4: Simplify right side
497.95x = 221,984.57 - Step 5: Solve for x
x = 221,984.57/497.95 - Step 6: Final answer
x = 445.80
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.