Finding the Fourth Proportional to 443, 611.36 and 288.02
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Solution
The fourth proportional to 443, 611.36 and 288.02 is: 397.48
Step by Step Solution
- Step 1: Write the proportion equation
443 : 611.36 = 288.02 : x - Step 2: Convert to fraction form
443/611.36 = 288.02/x - Step 3: Cross multiply
443x = 611.36 × 288.02 - Step 4: Simplify right side
443x = 176,083.91 - Step 5: Solve for x
x = 176,083.91/443 - Step 6: Final answer
x = 397.48
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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.