Finding the Fourth Proportional to 145,405.19, 218,107.45 and 45,572.99
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Solution
The fourth proportional to 145,405.19, 218,107.45 and 45,572.99 is: 68,359.37
Step by Step Solution
- Step 1: Write the proportion equation
145,405.19 : 218,107.45 = 45,572.99 : x - Step 2: Convert to fraction form
145,405.19/218,107.45 = 45,572.99/x - Step 3: Cross multiply
145,405.19x = 218,107.45 × 45,572.99 - Step 4: Simplify right side
145,405.19x = 9,939,807,433.31 - Step 5: Solve for x
x = 9,939,807,433.31/145,405.19 - Step 6: Final answer
x = 68,359.37
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1.5x scale
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.