Finding the Fourth Proportional to 408,229.23, 612,622.50 and 141,987.09
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Solution
The fourth proportional to 408,229.23, 612,622.50 and 141,987.09 is: 213,077.55
Step by Step Solution
- Step 1: Write the proportion equation
408,229.23 : 612,622.50 = 141,987.09 : x - Step 2: Convert to fraction form
408,229.23/612,622.50 = 141,987.09/x - Step 3: Cross multiply
408,229.23x = 612,622.50 × 141,987.09 - Step 4: Simplify right side
408,229.23x = 86,984,486,043.53 - Step 5: Solve for x
x = 86,984,486,043.53/408,229.23 - Step 6: Final answer
x = 213,077.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.