Finding the Fourth Proportional to 315,338.96, 472,727.16 and 115,612.70
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Solution
The fourth proportional to 315,338.96, 472,727.16 and 115,612.70 is: 173,315.92
Step by Step Solution
- Step 1: Write the proportion equation
315,338.96 : 472,727.16 = 115,612.70 : x - Step 2: Convert to fraction form
315,338.96/472,727.16 = 115,612.70/x - Step 3: Cross multiply
315,338.96x = 472,727.16 × 115,612.70 - Step 4: Simplify right side
315,338.96x = 54,653,263,330.93 - Step 5: Solve for x
x = 54,653,263,330.93/315,338.96 - Step 6: Final answer
x = 173,315.92
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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.