Finding the Fourth Proportional to 328,402.18, 492,797.82 and 138,852.19
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Solution
The fourth proportional to 328,402.18, 492,797.82 and 138,852.19 is: 208,360.54
Step by Step Solution
- Step 1: Write the proportion equation
328,402.18 : 492,797.82 = 138,852.19 : x - Step 2: Convert to fraction form
328,402.18/492,797.82 = 138,852.19/x - Step 3: Cross multiply
328,402.18x = 492,797.82 × 138,852.19 - Step 4: Simplify right side
328,402.18x = 68,426,054,070.24 - Step 5: Solve for x
x = 68,426,054,070.24/328,402.18 - Step 6: Final answer
x = 208,360.54
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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.