Finding the Fourth Proportional to 287,122.20, 430,366.17 and 118,549.59
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Solution
The fourth proportional to 287,122.20, 430,366.17 and 118,549.59 is: 177,693.45
Step by Step Solution
- Step 1: Write the proportion equation
287,122.20 : 430,366.17 = 118,549.59 : x - Step 2: Convert to fraction form
287,122.20/430,366.17 = 118,549.59/x - Step 3: Cross multiply
287,122.20x = 430,366.17 × 118,549.59 - Step 4: Simplify right side
287,122.20x = 51,019,733,003.37 - Step 5: Solve for x
x = 51,019,733,003.37/287,122.20 - Step 6: Final answer
x = 177,693.45
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1.5x scale
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.