Finding the Fourth Proportional to 451,853.74, 677,781.48 and 136,310.95
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Solution
The fourth proportional to 451,853.74, 677,781.48 and 136,310.95 is: 204,466.69
Step by Step Solution
- Step 1: Write the proportion equation
451,853.74 : 677,781.48 = 136,310.95 : x - Step 2: Convert to fraction form
451,853.74/677,781.48 = 136,310.95/x - Step 3: Cross multiply
451,853.74x = 677,781.48 × 136,310.95 - Step 4: Simplify right side
451,853.74x = 92,389,037,431.21 - Step 5: Solve for x
x = 92,389,037,431.21/451,853.74 - Step 6: Final answer
x = 204,466.69
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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.