Finding the Fourth Proportional to 368.38, 508.08 and 220.99
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Solution
The fourth proportional to 368.38, 508.08 and 220.99 is: 304.80
Step by Step Solution
- Step 1: Write the proportion equation
368.38 : 508.08 = 220.99 : x - Step 2: Convert to fraction form
368.38/508.08 = 220.99/x - Step 3: Cross multiply
368.38x = 508.08 × 220.99 - Step 4: Simplify right side
368.38x = 112,280.60 - Step 5: Solve for x
x = 112,280.60/368.38 - Step 6: Final answer
x = 304.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.