Finding the Fourth Proportional to 252.60, 348.46 and 207.80
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Solution
The fourth proportional to 252.60, 348.46 and 207.80 is: 286.66
Step by Step Solution
- Step 1: Write the proportion equation
252.60 : 348.46 = 207.80 : x - Step 2: Convert to fraction form
252.60/348.46 = 207.80/x - Step 3: Cross multiply
252.60x = 348.46 × 207.80 - Step 4: Simplify right side
252.60x = 72,409.99 - Step 5: Solve for x
x = 72,409.99/252.60 - Step 6: Final answer
x = 286.66
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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.