Finding the Fourth Proportional to 282,432.52, 390,010.04 and 210,687.99
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Solution
The fourth proportional to 282,432.52, 390,010.04 and 210,687.99 is: 290,938.28
Step by Step Solution
- Step 1: Write the proportion equation
282,432.52 : 390,010.04 = 210,687.99 : x - Step 2: Convert to fraction form
282,432.52/390,010.04 = 210,687.99/x - Step 3: Cross multiply
282,432.52x = 390,010.04 × 210,687.99 - Step 4: Simplify right side
282,432.52x = 82,170,431,407.42 - Step 5: Solve for x
x = 82,170,431,407.42/282,432.52 - Step 6: Final answer
x = 290,938.28
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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.