Finding the Fourth Proportional to 288,625.80, 432,938.70 and 274,847.70
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Solution
The fourth proportional to 288,625.80, 432,938.70 and 274,847.70 is: 412,271.55
Step by Step Solution
- Step 1: Write the proportion equation
288,625.80 : 432,938.70 = 274,847.70 : x - Step 2: Convert to fraction form
288,625.80/432,938.70 = 274,847.70/x - Step 3: Cross multiply
288,625.80x = 432,938.70 × 274,847.70 - Step 4: Simplify right side
288,625.80x = 118,992,205,935.99 - Step 5: Solve for x
x = 118,992,205,935.99/288,625.80 - Step 6: Final answer
x = 412,271.55
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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.