Finding the Fourth Proportional to 647,715.40, 971,112.30 and 248,201.80
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Solution
The fourth proportional to 647,715.40, 971,112.30 and 248,201.80 is: 372,126.12
Step by Step Solution
- Step 1: Write the proportion equation
647,715.40 : 971,112.30 = 248,201.80 : x - Step 2: Convert to fraction form
647,715.40/971,112.30 = 248,201.80/x - Step 3: Cross multiply
647,715.40x = 971,112.30 × 248,201.80 - Step 4: Simplify right side
647,715.40x = 241,031,820,862.14 - Step 5: Solve for x
x = 241,031,820,862.14/647,715.40 - Step 6: Final answer
x = 372,126.12
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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.