Finding the Fourth Proportional to 284,386.64, 392,450.28 and 155,324.48
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Solution
The fourth proportional to 284,386.64, 392,450.28 and 155,324.48 is: 214,345.99
Step by Step Solution
- Step 1: Write the proportion equation
284,386.64 : 392,450.28 = 155,324.48 : x - Step 2: Convert to fraction form
284,386.64/392,450.28 = 155,324.48/x - Step 3: Cross multiply
284,386.64x = 392,450.28 × 155,324.48 - Step 4: Simplify right side
284,386.64x = 60,957,135,666.85 - Step 5: Solve for x
x = 60,957,135,666.85/284,386.64 - Step 6: Final answer
x = 214,345.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.