Finding the Fourth Proportional to 287,558.81, 396,825.84 and 156,737.60
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Solution
The fourth proportional to 287,558.81, 396,825.84 and 156,737.60 is: 216,294.99
Step by Step Solution
- Step 1: Write the proportion equation
287,558.81 : 396,825.84 = 156,737.60 : x - Step 2: Convert to fraction form
287,558.81/396,825.84 = 156,737.60/x - Step 3: Cross multiply
287,558.81x = 396,825.84 × 156,737.60 - Step 4: Simplify right side
287,558.81x = 62,197,529,779.58 - Step 5: Solve for x
x = 62,197,529,779.58/287,558.81 - Step 6: Final answer
x = 216,294.99
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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.