Finding the Fourth Proportional to 305,727.60, 458,202.60 and 272,290.80
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Solution
The fourth proportional to 305,727.60, 458,202.60 and 272,290.80 is: 408,089.92
Step by Step Solution
- Step 1: Write the proportion equation
305,727.60 : 458,202.60 = 272,290.80 : x - Step 2: Convert to fraction form
305,727.60/458,202.60 = 272,290.80/x - Step 3: Cross multiply
305,727.60x = 458,202.60 × 272,290.80 - Step 4: Simplify right side
305,727.60x = 124,764,352,516.08 - Step 5: Solve for x
x = 124,764,352,516.08/305,727.60 - Step 6: Final answer
x = 408,089.92
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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.