Finding the Fourth Proportional to 210,916.23, 316,370.70 and 53,141.19
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Solution
The fourth proportional to 210,916.23, 316,370.70 and 53,141.19 is: 79,710.87
Step by Step Solution
- Step 1: Write the proportion equation
210,916.23 : 316,370.70 = 53,141.19 : x - Step 2: Convert to fraction form
210,916.23/316,370.70 = 53,141.19/x - Step 3: Cross multiply
210,916.23x = 316,370.70 × 53,141.19 - Step 4: Simplify right side
210,916.23x = 16,812,315,479.13 - Step 5: Solve for x
x = 16,812,315,479.13/210,916.23 - Step 6: Final answer
x = 79,710.87
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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.