Finding the Fourth Proportional to 318,043.36, 438,902.58 and 174,806.74
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Solution
The fourth proportional to 318,043.36, 438,902.58 and 174,806.74 is: 241,234.81
Step by Step Solution
- Step 1: Write the proportion equation
318,043.36 : 438,902.58 = 174,806.74 : x - Step 2: Convert to fraction form
318,043.36/438,902.58 = 174,806.74/x - Step 3: Cross multiply
318,043.36x = 438,902.58 × 174,806.74 - Step 4: Simplify right side
318,043.36x = 76,723,129,187.39 - Step 5: Solve for x
x = 76,723,129,187.39/318,043.36 - Step 6: Final answer
x = 241,234.81
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1.5x scale
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.