Finding the Fourth Proportional to 287,430.12, 396,657.68 and 164,942.46
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Solution
The fourth proportional to 287,430.12, 396,657.68 and 164,942.46 is: 227,622.95
Step by Step Solution
- Step 1: Write the proportion equation
287,430.12 : 396,657.68 = 164,942.46 : x - Step 2: Convert to fraction form
287,430.12/396,657.68 = 164,942.46/x - Step 3: Cross multiply
287,430.12x = 396,657.68 × 164,942.46 - Step 4: Simplify right side
287,430.12x = 65,425,692,692.38 - Step 5: Solve for x
x = 65,425,692,692.38/287,430.12 - Step 6: Final answer
x = 227,622.95
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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.