Finding the Fourth Proportional to 660,353.80, 990,530.70 and 161,717.80
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Solution
The fourth proportional to 660,353.80, 990,530.70 and 161,717.80 is: 242,576.70
Step by Step Solution
- Step 1: Write the proportion equation
660,353.80 : 990,530.70 = 161,717.80 : x - Step 2: Convert to fraction form
660,353.80/990,530.70 = 161,717.80/x - Step 3: Cross multiply
660,353.80x = 990,530.70 × 161,717.80 - Step 4: Simplify right side
660,353.80x = 160,186,445,636.46 - Step 5: Solve for x
x = 160,186,445,636.46/660,353.80 - Step 6: Final answer
x = 242,576.70
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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.