Finding the Fourth Proportional to 287,424.18, 396,657.61 and 160,099.74
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Solution
The fourth proportional to 287,424.18, 396,657.61 and 160,099.74 is: 220,944.46
Step by Step Solution
- Step 1: Write the proportion equation
287,424.18 : 396,657.61 = 160,099.74 : x - Step 2: Convert to fraction form
287,424.18/396,657.61 = 160,099.74/x - Step 3: Cross multiply
287,424.18x = 396,657.61 × 160,099.74 - Step 4: Simplify right side
287,424.18x = 63,504,779,829.77 - Step 5: Solve for x
x = 63,504,779,829.77/287,424.18 - Step 6: Final answer
x = 220,944.46
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1.5x scale
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.