Finding the Fourth Proportional to 195,394.80, 292,939.09 and 77,154.65
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Solution
The fourth proportional to 195,394.80, 292,939.09 and 77,154.65 is: 115,671.52
Step by Step Solution
- Step 1: Write the proportion equation
195,394.80 : 292,939.09 = 77,154.65 : x - Step 2: Convert to fraction form
195,394.80/292,939.09 = 77,154.65/x - Step 3: Cross multiply
195,394.80x = 292,939.09 × 77,154.65 - Step 4: Simplify right side
195,394.80x = 22,601,612,960.27 - Step 5: Solve for x
x = 22,601,612,960.27/195,394.80 - Step 6: Final answer
x = 115,671.52
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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.