Finding the Fourth Proportional to 316,910.25, 475,366.18 and 80,252.95
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Solution
The fourth proportional to 316,910.25, 475,366.18 and 80,252.95 is: 120,379.63
Step by Step Solution
- Step 1: Write the proportion equation
316,910.25 : 475,366.18 = 80,252.95 : x - Step 2: Convert to fraction form
316,910.25/475,366.18 = 80,252.95/x - Step 3: Cross multiply
316,910.25x = 475,366.18 × 80,252.95 - Step 4: Simplify right side
316,910.25x = 38,149,538,275.23 - Step 5: Solve for x
x = 38,149,538,275.23/316,910.25 - Step 6: Final answer
x = 120,379.63
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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.