Finding the Fourth Proportional to 485,316.11, 669,706.81 and 267,515.26
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Solution
The fourth proportional to 485,316.11, 669,706.81 and 267,515.26 is: 369,154.84
Step by Step Solution
- Step 1: Write the proportion equation
485,316.11 : 669,706.81 = 267,515.26 : x - Step 2: Convert to fraction form
485,316.11/669,706.81 = 267,515.26/x - Step 3: Cross multiply
485,316.11x = 669,706.81 × 267,515.26 - Step 4: Simplify right side
485,316.11x = 179,156,789,810.25 - Step 5: Solve for x
x = 179,156,789,810.25/485,316.11 - Step 6: Final answer
x = 369,154.84
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.