Finding the Fourth Proportional to 366.60, 549.70 and 135.30
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Solution
The fourth proportional to 366.60, 549.70 and 135.30 is: 202.88
Step by Step Solution
- Step 1: Write the proportion equation
366.60 : 549.70 = 135.30 : x - Step 2: Convert to fraction form
366.60/549.70 = 135.30/x - Step 3: Cross multiply
366.60x = 549.70 × 135.30 - Step 4: Simplify right side
366.60x = 74,374.41 - Step 5: Solve for x
x = 74,374.41/366.60 - Step 6: Final answer
x = 202.88
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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.