Finding the Fourth Proportional to 259,044.86, 388,533.26 and 81,552.80
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Solution
The fourth proportional to 259,044.86, 388,533.26 and 81,552.80 is: 122,318.49
Step by Step Solution
- Step 1: Write the proportion equation
259,044.86 : 388,533.26 = 81,552.80 : x - Step 2: Convert to fraction form
259,044.86/388,533.26 = 81,552.80/x - Step 3: Cross multiply
259,044.86x = 388,533.26 × 81,552.80 - Step 4: Simplify right side
259,044.86x = 31,685,975,246.13 - Step 5: Solve for x
x = 31,685,975,246.13/259,044.86 - Step 6: Final answer
x = 122,318.49
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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.