Finding the Fourth Proportional to 312,368.10, 468,442.80 and 162,558.60
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Solution
The fourth proportional to 312,368.10, 468,442.80 and 162,558.60 is: 243,780.99
Step by Step Solution
- Step 1: Write the proportion equation
312,368.10 : 468,442.80 = 162,558.60 : x - Step 2: Convert to fraction form
312,368.10/468,442.80 = 162,558.60/x - Step 3: Cross multiply
312,368.10x = 468,442.80 × 162,558.60 - Step 4: Simplify right side
312,368.10x = 76,149,405,748.08 - Step 5: Solve for x
x = 76,149,405,748.08/312,368.10 - Step 6: Final answer
x = 243,780.99
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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.