Finding the Fourth Proportional to 218,939.36, 302,136.18 and 118,337.36
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Solution
The fourth proportional to 218,939.36, 302,136.18 and 118,337.36 is: 163,305.48
Step by Step Solution
- Step 1: Write the proportion equation
218,939.36 : 302,136.18 = 118,337.36 : x - Step 2: Convert to fraction form
218,939.36/302,136.18 = 118,337.36/x - Step 3: Cross multiply
218,939.36x = 302,136.18 × 118,337.36 - Step 4: Simplify right side
218,939.36x = 35,753,995,947.24 - Step 5: Solve for x
x = 35,753,995,947.24/218,939.36 - Step 6: Final answer
x = 163,305.48
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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.