Finding the Fourth Proportional to 412,201.53, 618,360.99 and 127,916.65
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Solution
The fourth proportional to 412,201.53, 618,360.99 and 127,916.65 is: 191,893.19
Step by Step Solution
- Step 1: Write the proportion equation
412,201.53 : 618,360.99 = 127,916.65 : x - Step 2: Convert to fraction form
412,201.53/618,360.99 = 127,916.65/x - Step 3: Cross multiply
412,201.53x = 618,360.99 × 127,916.65 - Step 4: Simplify right side
412,201.53x = 79,098,666,294.83 - Step 5: Solve for x
x = 79,098,666,294.83/412,201.53 - Step 6: Final answer
x = 191,893.19
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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.