Finding the Fourth Proportional to 347,489.24, 520,880.70 and 136,837.40
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Solution
The fourth proportional to 347,489.24, 520,880.70 and 136,837.40 is: 205,117.03
Step by Step Solution
- Step 1: Write the proportion equation
347,489.24 : 520,880.70 = 136,837.40 : x - Step 2: Convert to fraction form
347,489.24/520,880.70 = 136,837.40/x - Step 3: Cross multiply
347,489.24x = 520,880.70 × 136,837.40 - Step 4: Simplify right side
347,489.24x = 71,275,960,698.18 - Step 5: Solve for x
x = 71,275,960,698.18/347,489.24 - Step 6: Final answer
x = 205,117.03
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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.