Finding the Fourth Proportional to 372,000.21, 513,327.42 and 206,432.43
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Solution
The fourth proportional to 372,000.21, 513,327.42 and 206,432.43 is: 284,858.51
Step by Step Solution
- Step 1: Write the proportion equation
372,000.21 : 513,327.42 = 206,432.43 : x - Step 2: Convert to fraction form
372,000.21/513,327.42 = 206,432.43/x - Step 3: Cross multiply
372,000.21x = 513,327.42 × 206,432.43 - Step 4: Simplify right side
372,000.21x = 105,967,426,696.23 - Step 5: Solve for x
x = 105,967,426,696.23/372,000.21 - Step 6: Final answer
x = 284,858.51
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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.