Finding the Fourth Proportional to 397,645.35, 548,734.16 and 216,357.99
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Solution
The fourth proportional to 397,645.35, 548,734.16 and 216,357.99 is: 298,565.09
Step by Step Solution
- Step 1: Write the proportion equation
397,645.35 : 548,734.16 = 216,357.99 : x - Step 2: Convert to fraction form
397,645.35/548,734.16 = 216,357.99/x - Step 3: Cross multiply
397,645.35x = 548,734.16 × 216,357.99 - Step 4: Simplify right side
397,645.35x = 118,723,018,820.15 - Step 5: Solve for x
x = 118,723,018,820.15/397,645.35 - Step 6: Final answer
x = 298,565.09
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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.