Finding the Fourth Proportional to 386,148.20, 579,740.70 and 246,525.80
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Solution
The fourth proportional to 386,148.20, 579,740.70 and 246,525.80 is: 370,119.66
Step by Step Solution
- Step 1: Write the proportion equation
386,148.20 : 579,740.70 = 246,525.80 : x - Step 2: Convert to fraction form
386,148.20/579,740.70 = 246,525.80/x - Step 3: Cross multiply
386,148.20x = 579,740.70 × 246,525.80 - Step 4: Simplify right side
386,148.20x = 142,921,039,860.06 - Step 5: Solve for x
x = 142,921,039,860.06/386,148.20 - Step 6: Final answer
x = 370,119.66
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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.