Finding the Fourth Proportional to 393,432.54, 542,916.63 and 214,549.98
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Solution
The fourth proportional to 393,432.54, 542,916.63 and 214,549.98 is: 296,067.92
Step by Step Solution
- Step 1: Write the proportion equation
393,432.54 : 542,916.63 = 214,549.98 : x - Step 2: Convert to fraction form
393,432.54/542,916.63 = 214,549.98/x - Step 3: Cross multiply
393,432.54x = 542,916.63 × 214,549.98 - Step 4: Simplify right side
393,432.54x = 116,482,752,108.17 - Step 5: Solve for x
x = 116,482,752,108.17/393,432.54 - Step 6: Final answer
x = 296,067.92
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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.