Finding the Fourth Proportional to 288.75, 432.99 and 134.63
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Solution
The fourth proportional to 288.75, 432.99 and 134.63 is: 201.88
Step by Step Solution
- Step 1: Write the proportion equation
288.75 : 432.99 = 134.63 : x - Step 2: Convert to fraction form
288.75/432.99 = 134.63/x - Step 3: Cross multiply
288.75x = 432.99 × 134.63 - Step 4: Simplify right side
288.75x = 58,293.44 - Step 5: Solve for x
x = 58,293.44/288.75 - Step 6: Final answer
x = 201.88
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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.