Finding the Fourth Proportional to 426,580.16, 639,378.09 and 160,170.75
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Solution
The fourth proportional to 426,580.16, 639,378.09 and 160,170.75 is: 240,071.34
Step by Step Solution
- Step 1: Write the proportion equation
426,580.16 : 639,378.09 = 160,170.75 : x - Step 2: Convert to fraction form
426,580.16/639,378.09 = 160,170.75/x - Step 3: Cross multiply
426,580.16x = 639,378.09 × 160,170.75 - Step 4: Simplify right side
426,580.16x = 102,409,668,208.87 - Step 5: Solve for x
x = 102,409,668,208.87/426,580.16 - Step 6: Final answer
x = 240,071.34
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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.