Finding the Fourth Proportional to 277,138.15, 415,707.58 and 66,776.09
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Solution
The fourth proportional to 277,138.15, 415,707.58 and 66,776.09 is: 100,164.21
Step by Step Solution
- Step 1: Write the proportion equation
277,138.15 : 415,707.58 = 66,776.09 : x - Step 2: Convert to fraction form
277,138.15/415,707.58 = 66,776.09/x - Step 3: Cross multiply
277,138.15x = 415,707.58 × 66,776.09 - Step 4: Simplify right side
277,138.15x = 27,759,324,405.08 - Step 5: Solve for x
x = 27,759,324,405.08/277,138.15 - Step 6: Final answer
x = 100,164.21
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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.