Finding the Fourth Proportional to 408,107.20, 612,224.19 and 208,319.49
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Solution
The fourth proportional to 408,107.20, 612,224.19 and 208,319.49 is: 312,511.59
Step by Step Solution
- Step 1: Write the proportion equation
408,107.20 : 612,224.19 = 208,319.49 : x - Step 2: Convert to fraction form
408,107.20/612,224.19 = 208,319.49/x - Step 3: Cross multiply
408,107.20x = 612,224.19 × 208,319.49 - Step 4: Simplify right side
408,107.20x = 127,538,228,714.71 - Step 5: Solve for x
x = 127,538,228,714.71/408,107.20 - Step 6: Final answer
x = 312,511.59
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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.