Finding the Fourth Proportional to 286,778.60, 395,757.08 and 159,450.92
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Solution
The fourth proportional to 286,778.60, 395,757.08 and 159,450.92 is: 220,043.72
Step by Step Solution
- Step 1: Write the proportion equation
286,778.60 : 395,757.08 = 159,450.92 : x - Step 2: Convert to fraction form
286,778.60/395,757.08 = 159,450.92/x - Step 3: Cross multiply
286,778.60x = 395,757.08 × 159,450.92 - Step 4: Simplify right side
286,778.60x = 63,103,830,502.51 - Step 5: Solve for x
x = 63,103,830,502.51/286,778.60 - Step 6: Final answer
x = 220,043.72
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1.5x scale
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.