Finding the Fourth Proportional to 380,807.57, 525,511.18 and 208,735.09
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Solution
The fourth proportional to 380,807.57, 525,511.18 and 208,735.09 is: 288,052.63
Step by Step Solution
- Step 1: Write the proportion equation
380,807.57 : 525,511.18 = 208,735.09 : x - Step 2: Convert to fraction form
380,807.57/525,511.18 = 208,735.09/x - Step 3: Cross multiply
380,807.57x = 525,511.18 × 208,735.09 - Step 4: Simplify right side
380,807.57x = 109,692,623,453.31 - Step 5: Solve for x
x = 109,692,623,453.31/380,807.57 - Step 6: Final answer
x = 288,052.63
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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.