Finding the Fourth Proportional to 161,299.20, 241,948.80 and 102,201.60
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Solution
The fourth proportional to 161,299.20, 241,948.80 and 102,201.60 is: 153,302.40
Step by Step Solution
- Step 1: Write the proportion equation
161,299.20 : 241,948.80 = 102,201.60 : x - Step 2: Convert to fraction form
161,299.20/241,948.80 = 102,201.60/x - Step 3: Cross multiply
161,299.20x = 241,948.80 × 102,201.60 - Step 4: Simplify right side
161,299.20x = 24,727,554,478.08 - Step 5: Solve for x
x = 24,727,554,478.08/161,299.20 - Step 6: Final answer
x = 153,302.40
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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.