Finding the Fourth Proportional to 380,647.68, 525,273.12 and 210,871.68
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Solution
The fourth proportional to 380,647.68, 525,273.12 and 210,871.68 is: 290,991.46
Step by Step Solution
- Step 1: Write the proportion equation
380,647.68 : 525,273.12 = 210,871.68 : x - Step 2: Convert to fraction form
380,647.68/525,273.12 = 210,871.68/x - Step 3: Cross multiply
380,647.68x = 525,273.12 × 210,871.68 - Step 4: Simplify right side
380,647.68x = 110,765,225,273.24 - Step 5: Solve for x
x = 110,765,225,273.24/380,647.68 - Step 6: Final answer
x = 290,991.46
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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.