Finding the Fourth Proportional to 368,728.80, 508,846.56 and 205,383.99
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Solution
The fourth proportional to 368,728.80, 508,846.56 and 205,383.99 is: 283,430.36
Step by Step Solution
- Step 1: Write the proportion equation
368,728.80 : 508,846.56 = 205,383.99 : x - Step 2: Convert to fraction form
368,728.80/508,846.56 = 205,383.99/x - Step 3: Cross multiply
368,728.80x = 508,846.56 × 205,383.99 - Step 4: Simplify right side
368,728.80x = 104,508,936,790.57 - Step 5: Solve for x
x = 104,508,936,790.57/368,728.80 - Step 6: Final answer
x = 283,430.36
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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.