Finding the Fourth Proportional to 318,056.10, 438,916.77 and 174,815.70
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Solution
The fourth proportional to 318,056.10, 438,916.77 and 174,815.70 is: 241,245.31
Step by Step Solution
- Step 1: Write the proportion equation
318,056.10 : 438,916.77 = 174,815.70 : x - Step 2: Convert to fraction form
318,056.10/438,916.77 = 174,815.70/x - Step 3: Cross multiply
318,056.10x = 438,916.77 × 174,815.70 - Step 4: Simplify right side
318,056.10x = 76,729,542,389.29 - Step 5: Solve for x
x = 76,729,542,389.29/318,056.10 - Step 6: Final answer
x = 241,245.31
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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.