Finding the Fourth Proportional to 409,433.11, 614,207.07 and 143,133.05
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Solution
The fourth proportional to 409,433.11, 614,207.07 and 143,133.05 is: 214,719.64
Step by Step Solution
- Step 1: Write the proportion equation
409,433.11 : 614,207.07 = 143,133.05 : x - Step 2: Convert to fraction form
409,433.11/614,207.07 = 143,133.05/x - Step 3: Cross multiply
409,433.11x = 614,207.07 × 143,133.05 - Step 4: Simplify right side
409,433.11x = 87,913,331,260.66 - Step 5: Solve for x
x = 87,913,331,260.66/409,433.11 - Step 6: Final answer
x = 214,719.64
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1.5x scale
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.