Finding the Fourth Proportional to 210,801.60, 315,546.30 and 121,790.70
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Solution
The fourth proportional to 210,801.60, 315,546.30 and 121,790.70 is: 182,306.99
Step by Step Solution
- Step 1: Write the proportion equation
210,801.60 : 315,546.30 = 121,790.70 : x - Step 2: Convert to fraction form
210,801.60/315,546.30 = 121,790.70/x - Step 3: Cross multiply
210,801.60x = 315,546.30 × 121,790.70 - Step 4: Simplify right side
210,801.60x = 38,430,604,759.41 - Step 5: Solve for x
x = 38,430,604,759.41/210,801.60 - Step 6: Final answer
x = 182,306.99
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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.