Finding the Fourth Proportional to 288.62, 433.09 and 178.99
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Solution
The fourth proportional to 288.62, 433.09 and 178.99 is: 268.59
Step by Step Solution
- Step 1: Write the proportion equation
288.62 : 433.09 = 178.99 : x - Step 2: Convert to fraction form
288.62/433.09 = 178.99/x - Step 3: Cross multiply
288.62x = 433.09 × 178.99 - Step 4: Simplify right side
288.62x = 77,518.87 - Step 5: Solve for x
x = 77,518.87/288.62 - Step 6: Final answer
x = 268.59
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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.