Finding the Fourth Proportional to 740.06, 1,110.20 and 252.99
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Solution
The fourth proportional to 740.06, 1,110.20 and 252.99 is: 379.52
Step by Step Solution
- Step 1: Write the proportion equation
740.06 : 1,110.20 = 252.99 : x - Step 2: Convert to fraction form
740.06/1,110.20 = 252.99/x - Step 3: Cross multiply
740.06x = 1,110.20 × 252.99 - Step 4: Simplify right side
740.06x = 280,868.23 - Step 5: Solve for x
x = 280,868.23/740.06 - Step 6: Final answer
x = 379.52
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1.5x scale
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.