Finding the Fourth Proportional to 190,718.80, 286,207.80 and 106,478.80
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Solution
The fourth proportional to 190,718.80, 286,207.80 and 106,478.80 is: 159,790.56
Step by Step Solution
- Step 1: Write the proportion equation
190,718.80 : 286,207.80 = 106,478.80 : x - Step 2: Convert to fraction form
190,718.80/286,207.80 = 106,478.80/x - Step 3: Cross multiply
190,718.80x = 286,207.80 × 106,478.80 - Step 4: Simplify right side
190,718.80x = 30,475,063,094.64 - Step 5: Solve for x
x = 30,475,063,094.64/190,718.80 - Step 6: Final answer
x = 159,790.56
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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.