Finding the Fourth Proportional to 354,904.40, 489,749.66 and 201,939.50
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Solution
The fourth proportional to 354,904.40, 489,749.66 and 201,939.50 is: 278,666.03
Step by Step Solution
- Step 1: Write the proportion equation
354,904.40 : 489,749.66 = 201,939.50 : x - Step 2: Convert to fraction form
354,904.40/489,749.66 = 201,939.50/x - Step 3: Cross multiply
354,904.40x = 489,749.66 × 201,939.50 - Step 4: Simplify right side
354,904.40x = 98,899,798,007.12 - Step 5: Solve for x
x = 98,899,798,007.12/354,904.40 - Step 6: Final answer
x = 278,666.03
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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.