Finding the Fourth Proportional to 410,037.92, 615,145.98 and 125,729.54
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Solution
The fourth proportional to 410,037.92, 615,145.98 and 125,729.54 is: 188,621.63
Step by Step Solution
- Step 1: Write the proportion equation
410,037.92 : 615,145.98 = 125,729.54 : x - Step 2: Convert to fraction form
410,037.92/615,145.98 = 125,729.54/x - Step 3: Cross multiply
410,037.92x = 615,145.98 × 125,729.54 - Step 4: Simplify right side
410,037.92x = 77,342,021,098.25 - Step 5: Solve for x
x = 77,342,021,098.25/410,037.92 - Step 6: Final answer
x = 188,621.63
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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.