Finding the Fourth Proportional to 218,981.70, 302,194.62 and 118,379.70
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Solution
The fourth proportional to 218,981.70, 302,194.62 and 118,379.70 is: 163,363.92
Step by Step Solution
- Step 1: Write the proportion equation
218,981.70 : 302,194.62 = 118,379.70 : x - Step 2: Convert to fraction form
218,981.70/302,194.62 = 118,379.70/x - Step 3: Cross multiply
218,981.70x = 302,194.62 × 118,379.70 - Step 4: Simplify right side
218,981.70x = 35,773,708,457.21 - Step 5: Solve for x
x = 35,773,708,457.21/218,981.70 - Step 6: Final answer
x = 163,363.92
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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.