Finding the Fourth Proportional to 397,320.18, 548,286.74 and 216,032.26
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Solution
The fourth proportional to 397,320.18, 548,286.74 and 216,032.26 is: 298,116.30
Step by Step Solution
- Step 1: Write the proportion equation
397,320.18 : 548,286.74 = 216,032.26 : x - Step 2: Convert to fraction form
397,320.18/548,286.74 = 216,032.26/x - Step 3: Cross multiply
397,320.18x = 548,286.74 × 216,032.26 - Step 4: Simplify right side
397,320.18x = 118,447,623,570.23 - Step 5: Solve for x
x = 118,447,623,570.23/397,320.18 - Step 6: Final answer
x = 298,116.30
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1.5x scale
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.