Finding the Fourth Proportional to 218,744.99, 301,877.38 and 121,948.83
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Solution
The fourth proportional to 218,744.99, 301,877.38 and 121,948.83 is: 168,294.56
Step by Step Solution
- Step 1: Write the proportion equation
218,744.99 : 301,877.38 = 121,948.83 : x - Step 2: Convert to fraction form
218,744.99/301,877.38 = 121,948.83/x - Step 3: Cross multiply
218,744.99x = 301,877.38 × 121,948.83 - Step 4: Simplify right side
218,744.99x = 36,813,591,785.08 - Step 5: Solve for x
x = 36,813,591,785.08/218,744.99 - Step 6: Final answer
x = 168,294.56
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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.