Finding the Fourth Proportional to 153,145.16, 229,728.68 and 40,824.80
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Solution
The fourth proportional to 153,145.16, 229,728.68 and 40,824.80 is: 61,240.12
Step by Step Solution
- Step 1: Write the proportion equation
153,145.16 : 229,728.68 = 40,824.80 : x - Step 2: Convert to fraction form
153,145.16/229,728.68 = 40,824.80/x - Step 3: Cross multiply
153,145.16x = 229,728.68 × 40,824.80 - Step 4: Simplify right side
153,145.16x = 9,378,627,415.26 - Step 5: Solve for x
x = 9,378,627,415.26/153,145.16 - Step 6: Final answer
x = 61,240.12
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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.