Finding the Fourth Proportional to 277,142.18, 415,728.12 and 87,588.14
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Solution
The fourth proportional to 277,142.18, 415,728.12 and 87,588.14 is: 131,386.89
Step by Step Solution
- Step 1: Write the proportion equation
277,142.18 : 415,728.12 = 87,588.14 : x - Step 2: Convert to fraction form
277,142.18/415,728.12 = 87,588.14/x - Step 3: Cross multiply
277,142.18x = 415,728.12 × 87,588.14 - Step 4: Simplify right side
277,142.18x = 36,412,850,779.97 - Step 5: Solve for x
x = 36,412,850,779.97/277,142.18 - Step 6: Final answer
x = 131,386.89
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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.