Finding the Fourth Proportional to 288,132.05, 431,848.16 and 203,916.83
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Solution
The fourth proportional to 288,132.05, 431,848.16 and 203,916.83 is: 305,627.60
Step by Step Solution
- Step 1: Write the proportion equation
288,132.05 : 431,848.16 = 203,916.83 : x - Step 2: Convert to fraction form
288,132.05/431,848.16 = 203,916.83/x - Step 3: Cross multiply
288,132.05x = 431,848.16 × 203,916.83 - Step 4: Simplify right side
288,132.05x = 88,061,104,649.71 - Step 5: Solve for x
x = 88,061,104,649.71/288,132.05 - Step 6: Final answer
x = 305,627.60
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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.