Finding the Fourth Proportional to 410,067.90, 615,120.36 and 125,737.68
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Solution
The fourth proportional to 410,067.90, 615,120.36 and 125,737.68 is: 188,612.20
Step by Step Solution
- Step 1: Write the proportion equation
410,067.90 : 615,120.36 = 125,737.68 : x - Step 2: Convert to fraction form
410,067.90/615,120.36 = 125,737.68/x - Step 3: Cross multiply
410,067.90x = 615,120.36 × 125,737.68 - Step 4: Simplify right side
410,067.90x = 77,343,806,987.16 - Step 5: Solve for x
x = 77,343,806,987.16/410,067.90 - Step 6: Final answer
x = 188,612.20
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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.