Finding the Fourth Proportional to 328,176.19, 492,264.26 and 78,858.19
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Solution
The fourth proportional to 328,176.19, 492,264.26 and 78,858.19 is: 118,287.28
Step by Step Solution
- Step 1: Write the proportion equation
328,176.19 : 492,264.26 = 78,858.19 : x - Step 2: Convert to fraction form
328,176.19/492,264.26 = 78,858.19/x - Step 3: Cross multiply
328,176.19x = 492,264.26 × 78,858.19 - Step 4: Simplify right side
328,176.19x = 38,819,068,545.29 - Step 5: Solve for x
x = 38,819,068,545.29/328,176.19 - Step 6: Final answer
x = 118,287.28
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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.