Finding the Fourth Proportional to 216,855.02, 299,266.65 and 121,361.49
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Solution
The fourth proportional to 216,855.02, 299,266.65 and 121,361.49 is: 167,482.62
Step by Step Solution
- Step 1: Write the proportion equation
216,855.02 : 299,266.65 = 121,361.49 : x - Step 2: Convert to fraction form
216,855.02/299,266.65 = 121,361.49/x - Step 3: Cross multiply
216,855.02x = 299,266.65 × 121,361.49 - Step 4: Simplify right side
216,855.02x = 36,319,446,551.31 - Step 5: Solve for x
x = 36,319,446,551.31/216,855.02 - Step 6: Final answer
x = 167,482.62
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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.