Finding the Fourth Proportional to 353,221.71, 487,431.12 and 200,270.19
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Solution
The fourth proportional to 353,221.71, 487,431.12 and 200,270.19 is: 276,364.45
Step by Step Solution
- Step 1: Write the proportion equation
353,221.71 : 487,431.12 = 200,270.19 : x - Step 2: Convert to fraction form
353,221.71/487,431.12 = 200,270.19/x - Step 3: Cross multiply
353,221.71x = 487,431.12 × 200,270.19 - Step 4: Simplify right side
353,221.71x = 97,617,923,014.31 - Step 5: Solve for x
x = 97,617,923,014.31/353,221.71 - Step 6: Final answer
x = 276,364.45
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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.