Finding the Fourth Proportional to 207,485.97, 311,117.57 and 65,304.63
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Solution
The fourth proportional to 207,485.97, 311,117.57 and 65,304.63 is: 97,921.89
Step by Step Solution
- Step 1: Write the proportion equation
207,485.97 : 311,117.57 = 65,304.63 : x - Step 2: Convert to fraction form
207,485.97/311,117.57 = 65,304.63/x - Step 3: Cross multiply
207,485.97x = 311,117.57 × 65,304.63 - Step 4: Simplify right side
207,485.97x = 20,317,417,468.83 - Step 5: Solve for x
x = 20,317,417,468.83/207,485.97 - Step 6: Final answer
x = 97,921.89
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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.