Finding the Fourth Proportional to 280,763.58, 387,343.83 and 173,146.80
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Solution
The fourth proportional to 280,763.58, 387,343.83 and 173,146.80 is: 238,874.80
Step by Step Solution
- Step 1: Write the proportion equation
280,763.58 : 387,343.83 = 173,146.80 : x - Step 2: Convert to fraction form
280,763.58/387,343.83 = 173,146.80/x - Step 3: Cross multiply
280,763.58x = 387,343.83 × 173,146.80 - Step 4: Simplify right side
280,763.58x = 67,067,344,664.24 - Step 5: Solve for x
x = 67,067,344,664.24/280,763.58 - Step 6: Final answer
x = 238,874.80
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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.