Finding the Fourth Proportional to 409,556.99, 614,612.31 and 143,319.81
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Solution
The fourth proportional to 409,556.99, 614,612.31 and 143,319.81 is: 215,076.59
Step by Step Solution
- Step 1: Write the proportion equation
409,556.99 : 614,612.31 = 143,319.81 : x - Step 2: Convert to fraction form
409,556.99/614,612.31 = 143,319.81/x - Step 3: Cross multiply
409,556.99x = 614,612.31 × 143,319.81 - Step 4: Simplify right side
409,556.99x = 88,086,121,260.21 - Step 5: Solve for x
x = 88,086,121,260.21/409,556.99 - Step 6: Final answer
x = 215,076.59
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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.