Finding the Fourth Proportional to 209,280.20, 288,294.14 and 151,750.46
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Solution
The fourth proportional to 209,280.20, 288,294.14 and 151,750.46 is: 209,043.99
Step by Step Solution
- Step 1: Write the proportion equation
209,280.20 : 288,294.14 = 151,750.46 : x - Step 2: Convert to fraction form
209,280.20/288,294.14 = 151,750.46/x - Step 3: Cross multiply
209,280.20x = 288,294.14 × 151,750.46 - Step 4: Simplify right side
209,280.20x = 43,748,766,160.08 - Step 5: Solve for x
x = 43,748,766,160.08/209,280.20 - Step 6: Final answer
x = 209,043.99
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1.5x scale
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.