Finding the Fourth Proportional to 390,189.24, 585,452.75 and 137,650.28
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Solution
The fourth proportional to 390,189.24, 585,452.75 and 137,650.28 is: 206,534.99
Step by Step Solution
- Step 1: Write the proportion equation
390,189.24 : 585,452.75 = 137,650.28 : x - Step 2: Convert to fraction form
390,189.24/585,452.75 = 137,650.28/x - Step 3: Cross multiply
390,189.24x = 585,452.75 × 137,650.28 - Step 4: Simplify right side
390,189.24x = 80,587,731,348.75 - Step 5: Solve for x
x = 80,587,731,348.75/390,189.24 - Step 6: Final answer
x = 206,534.99
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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.