Finding the Fourth Proportional to 392,988.44, 542,323.94 and 214,140.44
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Solution
The fourth proportional to 392,988.44, 542,323.94 and 214,140.44 is: 295,513.75
Step by Step Solution
- Step 1: Write the proportion equation
392,988.44 : 542,323.94 = 214,140.44 : x - Step 2: Convert to fraction form
392,988.44/542,323.94 = 214,140.44/x - Step 3: Cross multiply
392,988.44x = 542,323.94 × 214,140.44 - Step 4: Simplify right side
392,988.44x = 116,133,487,134.13 - Step 5: Solve for x
x = 116,133,487,134.13/392,988.44 - Step 6: Final answer
x = 295,513.75
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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.