Finding the Fourth Proportional to 217,377.04, 326,114.64 and 77,135.68
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Solution
The fourth proportional to 217,377.04, 326,114.64 and 77,135.68 is: 115,720.94
Step by Step Solution
- Step 1: Write the proportion equation
217,377.04 : 326,114.64 = 77,135.68 : x - Step 2: Convert to fraction form
217,377.04/326,114.64 = 77,135.68/x - Step 3: Cross multiply
217,377.04x = 326,114.64 × 77,135.68 - Step 4: Simplify right side
217,377.04x = 25,155,074,514.36 - Step 5: Solve for x
x = 25,155,074,514.36/217,377.04 - Step 6: Final answer
x = 115,720.94
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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.