Finding the Fourth Proportional to 328,395.01, 492,658.99 and 138,855.07
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Solution
The fourth proportional to 328,395.01, 492,658.99 and 138,855.07 is: 208,310.71
Step by Step Solution
- Step 1: Write the proportion equation
328,395.01 : 492,658.99 = 138,855.07 : x - Step 2: Convert to fraction form
328,395.01/492,658.99 = 138,855.07/x - Step 3: Cross multiply
328,395.01x = 492,658.99 × 138,855.07 - Step 4: Simplify right side
328,395.01x = 68,408,198,811.27 - Step 5: Solve for x
x = 68,408,198,811.27/328,395.01 - Step 6: Final answer
x = 208,310.71
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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.