Finding the Fourth Proportional to 165,539.76, 248,311.95 and 47,211.09
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Solution
The fourth proportional to 165,539.76, 248,311.95 and 47,211.09 is: 70,817.29
Step by Step Solution
- Step 1: Write the proportion equation
165,539.76 : 248,311.95 = 47,211.09 : x - Step 2: Convert to fraction form
165,539.76/248,311.95 = 47,211.09/x - Step 3: Cross multiply
165,539.76x = 248,311.95 × 47,211.09 - Step 4: Simplify right side
165,539.76x = 11,723,077,819.53 - Step 5: Solve for x
x = 11,723,077,819.53/165,539.76 - Step 6: Final answer
x = 70,817.29
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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.