Finding the Fourth Proportional to 135,006.40, 202,290.90 and 115,323.40
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Solution
The fourth proportional to 135,006.40, 202,290.90 and 115,323.40 is: 172,798.28
Step by Step Solution
- Step 1: Write the proportion equation
135,006.40 : 202,290.90 = 115,323.40 : x - Step 2: Convert to fraction form
135,006.40/202,290.90 = 115,323.40/x - Step 3: Cross multiply
135,006.40x = 202,290.90 × 115,323.40 - Step 4: Simplify right side
135,006.40x = 23,328,874,377.06 - Step 5: Solve for x
x = 23,328,874,377.06/135,006.40 - Step 6: Final answer
x = 172,798.28
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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.