Finding the Fourth Proportional to 212,610.77, 318,916.59 and 199,619.99
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Solution
The fourth proportional to 212,610.77, 318,916.59 and 199,619.99 is: 299,430.39
Step by Step Solution
- Step 1: Write the proportion equation
212,610.77 : 318,916.59 = 199,619.99 : x - Step 2: Convert to fraction form
212,610.77/318,916.59 = 199,619.99/x - Step 3: Cross multiply
212,610.77x = 318,916.59 × 199,619.99 - Step 4: Simplify right side
212,610.77x = 63,662,126,506.63 - Step 5: Solve for x
x = 63,662,126,506.63/212,610.77 - Step 6: Final answer
x = 299,430.39
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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.