Finding the Fourth Proportional to 399,402.21, 599,108.62 and 133,162.81
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Solution
The fourth proportional to 399,402.21, 599,108.62 and 133,162.81 is: 199,745.98
Step by Step Solution
- Step 1: Write the proportion equation
399,402.21 : 599,108.62 = 133,162.81 : x - Step 2: Convert to fraction form
399,402.21/599,108.62 = 133,162.81/x - Step 3: Cross multiply
399,402.21x = 599,108.62 × 133,162.81 - Step 4: Simplify right side
399,402.21x = 79,778,987,334.42 - Step 5: Solve for x
x = 79,778,987,334.42/399,402.21 - Step 6: Final answer
x = 199,745.98
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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.