Finding the Fourth Proportional to 415,917.45, 623,876.01 and 163,316.79
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Solution
The fourth proportional to 415,917.45, 623,876.01 and 163,316.79 is: 244,975.12
Step by Step Solution
- Step 1: Write the proportion equation
415,917.45 : 623,876.01 = 163,316.79 : x - Step 2: Convert to fraction form
415,917.45/623,876.01 = 163,316.79/x - Step 3: Cross multiply
415,917.45x = 623,876.01 × 163,316.79 - Step 4: Simplify right side
415,917.45x = 101,889,427,311.21 - Step 5: Solve for x
x = 101,889,427,311.21/415,917.45 - Step 6: Final answer
x = 244,975.12
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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.