Finding the Fourth Proportional to 287,669.62, 431,204.99 and 161,124.34
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Solution
The fourth proportional to 287,669.62, 431,204.99 and 161,124.34 is: 241,518.79
Step by Step Solution
- Step 1: Write the proportion equation
287,669.62 : 431,204.99 = 161,124.34 : x - Step 2: Convert to fraction form
287,669.62/431,204.99 = 161,124.34/x - Step 3: Cross multiply
287,669.62x = 431,204.99 × 161,124.34 - Step 4: Simplify right side
287,669.62x = 69,477,619,418.46 - Step 5: Solve for x
x = 69,477,619,418.46/287,669.62 - Step 6: Final answer
x = 241,518.79
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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.