Finding the Fourth Proportional to 218,957.79, 302,161.62 and 118,355.79
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Solution
The fourth proportional to 218,957.79, 302,161.62 and 118,355.79 is: 163,330.92
Step by Step Solution
- Step 1: Write the proportion equation
218,957.79 : 302,161.62 = 118,355.79 : x - Step 2: Convert to fraction form
218,957.79/302,161.62 = 118,355.79/x - Step 3: Cross multiply
218,957.79x = 302,161.62 × 118,355.79 - Step 4: Simplify right side
218,957.79x = 35,762,577,998.18 - Step 5: Solve for x
x = 35,762,577,998.18/218,957.79 - Step 6: Final answer
x = 163,330.92
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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.