Finding the Fourth Proportional to 305,006.18, 420,901.35 and 177,673.55
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Solution
The fourth proportional to 305,006.18, 420,901.35 and 177,673.55 is: 245,185.32
Step by Step Solution
- Step 1: Write the proportion equation
305,006.18 : 420,901.35 = 177,673.55 : x - Step 2: Convert to fraction form
305,006.18/420,901.35 = 177,673.55/x - Step 3: Cross multiply
305,006.18x = 420,901.35 × 177,673.55 - Step 4: Simplify right side
305,006.18x = 74,783,037,054.29 - Step 5: Solve for x
x = 74,783,037,054.29/305,006.18 - Step 6: Final answer
x = 245,185.32
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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.