Finding the Fourth Proportional to 305,005.58, 420,907.74 and 169,048.31
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Solution
The fourth proportional to 305,005.58, 420,907.74 and 169,048.31 is: 233,286.68
Step by Step Solution
- Step 1: Write the proportion equation
305,005.58 : 420,907.74 = 169,048.31 : x - Step 2: Convert to fraction form
305,005.58/420,907.74 = 169,048.31/x - Step 3: Cross multiply
305,005.58x = 420,907.74 × 169,048.31 - Step 4: Simplify right side
305,005.58x = 71,153,740,008.38 - Step 5: Solve for x
x = 71,153,740,008.38/305,005.58 - Step 6: Final answer
x = 233,286.68
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.