Finding the Fourth Proportional to 368.45, 508.44 and 211.08
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Solution
The fourth proportional to 368.45, 508.44 and 211.08 is: 291.28
Step by Step Solution
- Step 1: Write the proportion equation
368.45 : 508.44 = 211.08 : x - Step 2: Convert to fraction form
368.45/508.44 = 211.08/x - Step 3: Cross multiply
368.45x = 508.44 × 211.08 - Step 4: Simplify right side
368.45x = 107,321.99 - Step 5: Solve for x
x = 107,321.99/368.45 - Step 6: Final answer
x = 291.28
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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.