Finding the Fourth Proportional to 204,421.80, 306,632.70 and 71,257.80
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Solution
The fourth proportional to 204,421.80, 306,632.70 and 71,257.80 is: 106,886.70
Step by Step Solution
- Step 1: Write the proportion equation
204,421.80 : 306,632.70 = 71,257.80 : x - Step 2: Convert to fraction form
204,421.80/306,632.70 = 71,257.80/x - Step 3: Cross multiply
204,421.80x = 306,632.70 × 71,257.80 - Step 4: Simplify right side
204,421.80x = 21,849,971,610.06 - Step 5: Solve for x
x = 21,849,971,610.06/204,421.80 - Step 6: Final answer
x = 106,886.70
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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.