Finding the Fourth Proportional to 315,339.99, 472,728.75 and 115,613.84
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Solution
The fourth proportional to 315,339.99, 472,728.75 and 115,613.84 is: 173,317.65
Step by Step Solution
- Step 1: Write the proportion equation
315,339.99 : 472,728.75 = 115,613.84 : x - Step 2: Convert to fraction form
315,339.99/472,728.75 = 115,613.84/x - Step 3: Cross multiply
315,339.99x = 472,728.75 × 115,613.84 - Step 4: Simplify right side
315,339.99x = 54,653,986,065.90 - Step 5: Solve for x
x = 54,653,986,065.90/315,339.99 - Step 6: Final answer
x = 173,317.65
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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.