Finding the Fourth Proportional to 390,195.24, 585,231.76 and 123,920.68
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Solution
The fourth proportional to 390,195.24, 585,231.76 and 123,920.68 is: 185,861.62
Step by Step Solution
- Step 1: Write the proportion equation
390,195.24 : 585,231.76 = 123,920.68 : x - Step 2: Convert to fraction form
390,195.24/585,231.76 = 123,920.68/x - Step 3: Cross multiply
390,195.24x = 585,231.76 × 123,920.68 - Step 4: Simplify right side
390,195.24x = 72,522,317,656.80 - Step 5: Solve for x
x = 72,522,317,656.80/390,195.24 - Step 6: Final answer
x = 185,861.62
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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.