Finding the Fourth Proportional to 270,838.10, 373,751.93 and 149,976.78
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Solution
The fourth proportional to 270,838.10, 373,751.93 and 149,976.78 is: 206,965.39
Step by Step Solution
- Step 1: Write the proportion equation
270,838.10 : 373,751.93 = 149,976.78 : x - Step 2: Convert to fraction form
270,838.10/373,751.93 = 149,976.78/x - Step 3: Cross multiply
270,838.10x = 373,751.93 × 149,976.78 - Step 4: Simplify right side
270,838.10x = 56,054,111,355.13 - Step 5: Solve for x
x = 56,054,111,355.13/270,838.10 - Step 6: Final answer
x = 206,965.39
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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.