Finding the Fourth Proportional to 207,778.42, 286,631.49 and 130,240.09
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Solution
The fourth proportional to 207,778.42, 286,631.49 and 130,240.09 is: 179,666.93
Step by Step Solution
- Step 1: Write the proportion equation
207,778.42 : 286,631.49 = 130,240.09 : x - Step 2: Convert to fraction form
207,778.42/286,631.49 = 130,240.09/x - Step 3: Cross multiply
207,778.42x = 286,631.49 × 130,240.09 - Step 4: Simplify right side
207,778.42x = 37,330,911,054.43 - Step 5: Solve for x
x = 37,330,911,054.43/207,778.42 - Step 6: Final answer
x = 179,666.93
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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.