Finding the Fourth Proportional to 210,823.26, 290,942.99 and 120,177.57
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Solution
The fourth proportional to 210,823.26, 290,942.99 and 120,177.57 is: 165,848.98
Step by Step Solution
- Step 1: Write the proportion equation
210,823.26 : 290,942.99 = 120,177.57 : x - Step 2: Convert to fraction form
210,823.26/290,942.99 = 120,177.57/x - Step 3: Cross multiply
210,823.26x = 290,942.99 × 120,177.57 - Step 4: Simplify right side
210,823.26x = 34,964,822,487.55 - Step 5: Solve for x
x = 34,964,822,487.55/210,823.26 - Step 6: Final answer
x = 165,848.98
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.