Finding the Fourth Proportional to 274,365.78, 413,605.08 and 256,076.99
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Solution
The fourth proportional to 274,365.78, 413,605.08 and 256,076.99 is: 386,034.82
Step by Step Solution
- Step 1: Write the proportion equation
274,365.78 : 413,605.08 = 256,076.99 : x - Step 2: Convert to fraction form
274,365.78/413,605.08 = 256,076.99/x - Step 3: Cross multiply
274,365.78x = 413,605.08 × 256,076.99 - Step 4: Simplify right side
274,365.78x = 105,914,743,935.11 - Step 5: Solve for x
x = 105,914,743,935.11/274,365.78 - Step 6: Final answer
x = 386,034.82
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.