Finding the Fourth Proportional to 305,417.25, 455,645.97 and 288,883.53
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Solution
The fourth proportional to 305,417.25, 455,645.97 and 288,883.53 is: 430,979.64
Step by Step Solution
- Step 1: Write the proportion equation
305,417.25 : 455,645.97 = 288,883.53 : x - Step 2: Convert to fraction form
305,417.25/455,645.97 = 288,883.53/x - Step 3: Cross multiply
305,417.25x = 455,645.97 × 288,883.53 - Step 4: Simplify right side
305,417.25x = 131,628,616,243.87 - Step 5: Solve for x
x = 131,628,616,243.87/305,417.25 - Step 6: Final answer
x = 430,979.64
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.