Finding the Fourth Proportional to 396,051.21, 546,763.05 and 305,873.91
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Solution
The fourth proportional to 396,051.21, 546,763.05 and 305,873.91 is: 422,270.02
Step by Step Solution
- Step 1: Write the proportion equation
396,051.21 : 546,763.05 = 305,873.91 : x - Step 2: Convert to fraction form
396,051.21/546,763.05 = 305,873.91/x - Step 3: Cross multiply
396,051.21x = 546,763.05 × 305,873.91 - Step 4: Simplify right side
396,051.21x = 167,240,551,947.03 - Step 5: Solve for x
x = 167,240,551,947.03/396,051.21 - Step 6: Final answer
x = 422,270.02
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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.