Finding the Fourth Proportional to 150,586.28, 207,774.21 and 90,133.95
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Solution
The fourth proportional to 150,586.28, 207,774.21 and 90,133.95 is: 124,363.99
Step by Step Solution
- Step 1: Write the proportion equation
150,586.28 : 207,774.21 = 90,133.95 : x - Step 2: Convert to fraction form
150,586.28/207,774.21 = 90,133.95/x - Step 3: Cross multiply
150,586.28x = 207,774.21 × 90,133.95 - Step 4: Simplify right side
150,586.28x = 18,727,510,255.43 - Step 5: Solve for x
x = 18,727,510,255.43/150,586.28 - Step 6: Final answer
x = 124,363.99
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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.