Finding the Fourth Proportional to 218,931.75, 302,125.67 and 118,329.75
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Solution
The fourth proportional to 218,931.75, 302,125.67 and 118,329.75 is: 163,294.98
Step by Step Solution
- Step 1: Write the proportion equation
218,931.75 : 302,125.67 = 118,329.75 : x - Step 2: Convert to fraction form
218,931.75/302,125.67 = 118,329.75/x - Step 3: Cross multiply
218,931.75x = 302,125.67 × 118,329.75 - Step 4: Simplify right side
218,931.75x = 35,750,454,999.68 - Step 5: Solve for x
x = 35,750,454,999.68/218,931.75 - Step 6: Final answer
x = 163,294.98
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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.