Finding the Fourth Proportional to 268,402.21, 370,385.65 and 147,542.63
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Solution
The fourth proportional to 268,402.21, 370,385.65 and 147,542.63 is: 203,603.66
Step by Step Solution
- Step 1: Write the proportion equation
268,402.21 : 370,385.65 = 147,542.63 : x - Step 2: Convert to fraction form
268,402.21/370,385.65 = 147,542.63/x - Step 3: Cross multiply
268,402.21x = 370,385.65 × 147,542.63 - Step 4: Simplify right side
268,402.21x = 54,647,672,915.26 - Step 5: Solve for x
x = 54,647,672,915.26/268,402.21 - Step 6: Final answer
x = 203,603.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.