Finding the Fourth Proportional to 368.08, 507.84 and 220.75
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Solution
The fourth proportional to 368.08, 507.84 and 220.75 is: 304.57
Step by Step Solution
- Step 1: Write the proportion equation
368.08 : 507.84 = 220.75 : x - Step 2: Convert to fraction form
368.08/507.84 = 220.75/x - Step 3: Cross multiply
368.08x = 507.84 × 220.75 - Step 4: Simplify right side
368.08x = 112,105.68 - Step 5: Solve for x
x = 112,105.68/368.08 - Step 6: Final answer
x = 304.57
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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.