Finding the Fourth Proportional to 354.99, 489.43 and 236.98
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Solution
The fourth proportional to 354.99, 489.43 and 236.98 is: 326.73
Step by Step Solution
- Step 1: Write the proportion equation
354.99 : 489.43 = 236.98 : x - Step 2: Convert to fraction form
354.99/489.43 = 236.98/x - Step 3: Cross multiply
354.99x = 489.43 × 236.98 - Step 4: Simplify right side
354.99x = 115,985.12 - Step 5: Solve for x
x = 115,985.12/354.99 - Step 6: Final answer
x = 326.73
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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.