Finding the Fourth Proportional to 279.06, 418.70 and 170.93
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Solution
The fourth proportional to 279.06, 418.70 and 170.93 is: 256.45
Step by Step Solution
- Step 1: Write the proportion equation
279.06 : 418.70 = 170.93 : x - Step 2: Convert to fraction form
279.06/418.70 = 170.93/x - Step 3: Cross multiply
279.06x = 418.70 × 170.93 - Step 4: Simplify right side
279.06x = 71,565.44 - Step 5: Solve for x
x = 71,565.44/279.06 - Step 6: Final answer
x = 256.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.