Finding the Fourth Proportional to 305,465.60, 457,809.60 and 272,028.80
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Solution
The fourth proportional to 305,465.60, 457,809.60 and 272,028.80 is: 407,696.96
Step by Step Solution
- Step 1: Write the proportion equation
305,465.60 : 457,809.60 = 272,028.80 : x - Step 2: Convert to fraction form
305,465.60/457,809.60 = 272,028.80/x - Step 3: Cross multiply
305,465.60x = 457,809.60 × 272,028.80 - Step 4: Simplify right side
305,465.60x = 124,537,396,116.48 - Step 5: Solve for x
x = 124,537,396,116.48/305,465.60 - Step 6: Final answer
x = 407,696.96
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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.