Finding the Fourth Proportional to 356,916.71, 534,323.21 and 312,629.96
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Solution
The fourth proportional to 356,916.71, 534,323.21 and 312,629.96 is: 468,023.60
Step by Step Solution
- Step 1: Write the proportion equation
356,916.71 : 534,323.21 = 312,629.96 : x - Step 2: Convert to fraction form
356,916.71/534,323.21 = 312,629.96/x - Step 3: Cross multiply
356,916.71x = 534,323.21 × 312,629.96 - Step 4: Simplify right side
356,916.71x = 167,045,443,542.03 - Step 5: Solve for x
x = 167,045,443,542.03/356,916.71 - Step 6: Final answer
x = 468,023.60
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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.