Finding the Fourth Proportional to 159,218.10, 238,866.15 and 130,803.09
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Solution
The fourth proportional to 159,218.10, 238,866.15 and 130,803.09 is: 196,236.67
Step by Step Solution
- Step 1: Write the proportion equation
159,218.10 : 238,866.15 = 130,803.09 : x - Step 2: Convert to fraction form
159,218.10/238,866.15 = 130,803.09/x - Step 3: Cross multiply
159,218.10x = 238,866.15 × 130,803.09 - Step 4: Simplify right side
159,218.10x = 31,244,430,516.40 - Step 5: Solve for x
x = 31,244,430,516.40/159,218.10 - Step 6: Final answer
x = 196,236.67
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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.