Finding the Fourth Proportional to 368.21, 508.14 and 202.43
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Solution
The fourth proportional to 368.21, 508.14 and 202.43 is: 279.36
Step by Step Solution
- Step 1: Write the proportion equation
368.21 : 508.14 = 202.43 : x - Step 2: Convert to fraction form
368.21/508.14 = 202.43/x - Step 3: Cross multiply
368.21x = 508.14 × 202.43 - Step 4: Simplify right side
368.21x = 102,860.24 - Step 5: Solve for x
x = 102,860.24/368.21 - Step 6: Final answer
x = 279.36
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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.