Finding the Fourth Proportional to 170,428.79, 255,643.18 and 45,769.79
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Solution
The fourth proportional to 170,428.79, 255,643.18 and 45,769.79 is: 68,654.69
Step by Step Solution
- Step 1: Write the proportion equation
170,428.79 : 255,643.18 = 45,769.79 : x - Step 2: Convert to fraction form
170,428.79/255,643.18 = 45,769.79/x - Step 3: Cross multiply
170,428.79x = 255,643.18 × 45,769.79 - Step 4: Simplify right side
170,428.79x = 11,700,735,188.22 - Step 5: Solve for x
x = 11,700,735,188.22/170,428.79 - Step 6: Final answer
x = 68,654.69
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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.