Finding the Fourth Proportional to 368,671.40, 552,493.00 and 278,640.20
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Solution
The fourth proportional to 368,671.40, 552,493.00 and 278,640.20 is: 417,571.75
Step by Step Solution
- Step 1: Write the proportion equation
368,671.40 : 552,493.00 = 278,640.20 : x - Step 2: Convert to fraction form
368,671.40/552,493.00 = 278,640.20/x - Step 3: Cross multiply
368,671.40x = 552,493.00 × 278,640.20 - Step 4: Simplify right side
368,671.40x = 153,946,761,748.13 - Step 5: Solve for x
x = 153,946,761,748.13/368,671.40 - Step 6: Final answer
x = 417,571.75
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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.