Finding the Fourth Proportional to 312,563.47, 431,337.79 and 169,324.08
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Solution
The fourth proportional to 312,563.47, 431,337.79 and 169,324.08 is: 233,667.34
Step by Step Solution
- Step 1: Write the proportion equation
312,563.47 : 431,337.79 = 169,324.08 : x - Step 2: Convert to fraction form
312,563.47/431,337.79 = 169,324.08/x - Step 3: Cross multiply
312,563.47x = 431,337.79 × 169,324.08 - Step 4: Simplify right side
312,563.47x = 73,035,874,460.98 - Step 5: Solve for x
x = 73,035,874,460.98/312,563.47 - Step 6: Final answer
x = 233,667.34
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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.