Finding the Fourth Proportional to 315,338.99, 472,727.26 and 115,612.84
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Solution
The fourth proportional to 315,338.99, 472,727.26 and 115,612.84 is: 173,316.15
Step by Step Solution
- Step 1: Write the proportion equation
315,338.99 : 472,727.26 = 115,612.84 : x - Step 2: Convert to fraction form
315,338.99/472,727.26 = 115,612.84/x - Step 3: Cross multiply
315,338.99x = 472,727.26 × 115,612.84 - Step 4: Simplify right side
315,338.99x = 54,653,338,500.03 - Step 5: Solve for x
x = 54,653,338,500.03/315,338.99 - Step 6: Final answer
x = 173,316.15
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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.