Finding the Fourth Proportional to 276.74, 381.84 and 202.93
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Solution
The fourth proportional to 276.74, 381.84 and 202.93 is: 279.99
Step by Step Solution
- Step 1: Write the proportion equation
276.74 : 381.84 = 202.93 : x - Step 2: Convert to fraction form
276.74/381.84 = 202.93/x - Step 3: Cross multiply
276.74x = 381.84 × 202.93 - Step 4: Simplify right side
276.74x = 77,486.28 - Step 5: Solve for x
x = 77,486.28/276.74 - Step 6: Final answer
x = 279.99
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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.