Finding the Fourth Proportional to 145,916.79, 218,809.58 and 141,324.09
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Solution
The fourth proportional to 145,916.79, 218,809.58 and 141,324.09 is: 211,922.59
Step by Step Solution
- Step 1: Write the proportion equation
145,916.79 : 218,809.58 = 141,324.09 : x - Step 2: Convert to fraction form
145,916.79/218,809.58 = 141,324.09/x - Step 3: Cross multiply
145,916.79x = 218,809.58 × 141,324.09 - Step 4: Simplify right side
145,916.79x = 30,923,064,070.16 - Step 5: Solve for x
x = 30,923,064,070.16/145,916.79 - Step 6: Final answer
x = 211,922.59
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1.5x scale
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.