Finding the Fourth Proportional to 210,656.62, 315,919.18 and 70,382.44
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Solution
The fourth proportional to 210,656.62, 315,919.18 and 70,382.44 is: 105,551.69
Step by Step Solution
- Step 1: Write the proportion equation
210,656.62 : 315,919.18 = 70,382.44 : x - Step 2: Convert to fraction form
210,656.62/315,919.18 = 70,382.44/x - Step 3: Cross multiply
210,656.62x = 315,919.18 × 70,382.44 - Step 4: Simplify right side
210,656.62x = 22,235,162,731.20 - Step 5: Solve for x
x = 22,235,162,731.20/210,656.62 - Step 6: Final answer
x = 105,551.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.