Finding the Fourth Proportional to 217,428.72, 326,765.16 and 106,698.48
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Solution
The fourth proportional to 217,428.72, 326,765.16 and 106,698.48 is: 160,352.99
Step by Step Solution
- Step 1: Write the proportion equation
217,428.72 : 326,765.16 = 106,698.48 : x - Step 2: Convert to fraction form
217,428.72/326,765.16 = 106,698.48/x - Step 3: Cross multiply
217,428.72x = 326,765.16 × 106,698.48 - Step 4: Simplify right side
217,428.72x = 34,865,345,888.96 - Step 5: Solve for x
x = 34,865,345,888.96/217,428.72 - Step 6: Final answer
x = 160,352.99
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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.