Finding the Fourth Proportional to 397,644.32, 548,759.28 and 216,366.08
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Solution
The fourth proportional to 397,644.32, 548,759.28 and 216,366.08 is: 298,590.70
Step by Step Solution
- Step 1: Write the proportion equation
397,644.32 : 548,759.28 = 216,366.08 : x - Step 2: Convert to fraction form
397,644.32/548,759.28 = 216,366.08/x - Step 3: Cross multiply
397,644.32x = 548,759.28 × 216,366.08 - Step 4: Simplify right side
397,644.32x = 118,732,894,277.22 - Step 5: Solve for x
x = 118,732,894,277.22/397,644.32 - Step 6: Final answer
x = 298,590.70
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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.