Finding the Fourth Proportional to 305,739.60, 458,220.60 and 272,302.80
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Solution
The fourth proportional to 305,739.60, 458,220.60 and 272,302.80 is: 408,107.92
Step by Step Solution
- Step 1: Write the proportion equation
305,739.60 : 458,220.60 = 272,302.80 : x - Step 2: Convert to fraction form
305,739.60/458,220.60 = 272,302.80/x - Step 3: Cross multiply
305,739.60x = 458,220.60 × 272,302.80 - Step 4: Simplify right side
305,739.60x = 124,774,752,397.68 - Step 5: Solve for x
x = 124,774,752,397.68/305,739.60 - Step 6: Final answer
x = 408,107.92
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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.