Finding the Fourth Proportional to 230,129.52, 317,558.52 and 128,147.28
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Solution
The fourth proportional to 230,129.52, 317,558.52 and 128,147.28 is: 176,831.99
Step by Step Solution
- Step 1: Write the proportion equation
230,129.52 : 317,558.52 = 128,147.28 : x - Step 2: Convert to fraction form
230,129.52/317,558.52 = 128,147.28/x - Step 3: Cross multiply
230,129.52x = 317,558.52 × 128,147.28 - Step 4: Simplify right side
230,129.52x = 40,694,260,578.83 - Step 5: Solve for x
x = 40,694,260,578.83/230,129.52 - Step 6: Final answer
x = 176,831.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.