Finding the Fourth Proportional to 225,508.68, 311,197.38 and 130,009.68
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Solution
The fourth proportional to 225,508.68, 311,197.38 and 130,009.68 is: 179,410.71
Step by Step Solution
- Step 1: Write the proportion equation
225,508.68 : 311,197.38 = 130,009.68 : x - Step 2: Convert to fraction form
225,508.68/311,197.38 = 130,009.68/x - Step 3: Cross multiply
225,508.68x = 311,197.38 × 130,009.68 - Step 4: Simplify right side
225,508.68x = 40,458,671,790.64 - Step 5: Solve for x
x = 40,458,671,790.64/225,508.68 - Step 6: Final answer
x = 179,410.71
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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.