Finding the Fourth Proportional to 409,673.96, 614,510.94 and 129,213.08
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Solution
The fourth proportional to 409,673.96, 614,510.94 and 129,213.08 is: 193,819.62
Step by Step Solution
- Step 1: Write the proportion equation
409,673.96 : 614,510.94 = 129,213.08 : x - Step 2: Convert to fraction form
409,673.96/614,510.94 = 129,213.08/x - Step 3: Cross multiply
409,673.96x = 614,510.94 × 129,213.08 - Step 4: Simplify right side
409,673.96x = 79,402,851,251.10 - Step 5: Solve for x
x = 79,402,851,251.10/409,673.96 - Step 6: Final answer
x = 193,819.62
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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.