Finding the Fourth Proportional to 216,964.80, 299,376.88 and 121,475.52
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Solution
The fourth proportional to 216,964.80, 299,376.88 and 121,475.52 is: 167,616.88
Step by Step Solution
- Step 1: Write the proportion equation
216,964.80 : 299,376.88 = 121,475.52 : x - Step 2: Convert to fraction form
216,964.80/299,376.88 = 121,475.52/x - Step 3: Cross multiply
216,964.80x = 299,376.88 × 121,475.52 - Step 4: Simplify right side
216,964.80x = 36,366,962,173.98 - Step 5: Solve for x
x = 36,366,962,173.98/216,964.80 - Step 6: Final answer
x = 167,616.88
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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.