Finding the Fourth Proportional to 512,981.19, 769,554.50 and 157,995.09
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Solution
The fourth proportional to 512,981.19, 769,554.50 and 157,995.09 is: 237,018.11
Step by Step Solution
- Step 1: Write the proportion equation
512,981.19 : 769,554.50 = 157,995.09 : x - Step 2: Convert to fraction form
512,981.19/769,554.50 = 157,995.09/x - Step 3: Cross multiply
512,981.19x = 769,554.50 × 157,995.09 - Step 4: Simplify right side
512,981.19x = 121,585,831,697.43 - Step 5: Solve for x
x = 121,585,831,697.43/512,981.19 - Step 6: Final answer
x = 237,018.11
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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.