Finding the Fourth Proportional to 368.62, 508.70 and 202.85
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Solution
The fourth proportional to 368.62, 508.70 and 202.85 is: 279.93
Step by Step Solution
- Step 1: Write the proportion equation
368.62 : 508.70 = 202.85 : x - Step 2: Convert to fraction form
368.62/508.70 = 202.85/x - Step 3: Cross multiply
368.62x = 508.70 × 202.85 - Step 4: Simplify right side
368.62x = 103,186.24 - Step 5: Solve for x
x = 103,186.24/368.62 - Step 6: Final answer
x = 279.93
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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.