Finding the Fourth Proportional to 405,916.68, 608,803.74 and 125,436.36
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Solution
The fourth proportional to 405,916.68, 608,803.74 and 125,436.36 is: 188,132.51
Step by Step Solution
- Step 1: Write the proportion equation
405,916.68 : 608,803.74 = 125,436.36 : x - Step 2: Convert to fraction form
405,916.68/608,803.74 = 125,436.36/x - Step 3: Cross multiply
405,916.68x = 608,803.74 × 125,436.36 - Step 4: Simplify right side
405,916.68x = 76,366,125,099.99 - Step 5: Solve for x
x = 76,366,125,099.99/405,916.68 - Step 6: Final answer
x = 188,132.51
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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.