Finding the Fourth Proportional to 274,359.18, 378,594.09 and 153,490.98
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Solution
The fourth proportional to 274,359.18, 378,594.09 and 153,490.98 is: 211,805.48
Step by Step Solution
- Step 1: Write the proportion equation
274,359.18 : 378,594.09 = 153,490.98 : x - Step 2: Convert to fraction form
274,359.18/378,594.09 = 153,490.98/x - Step 3: Cross multiply
274,359.18x = 378,594.09 × 153,490.98 - Step 4: Simplify right side
274,359.18x = 58,110,777,896.31 - Step 5: Solve for x
x = 58,110,777,896.31/274,359.18 - Step 6: Final answer
x = 211,805.48
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1.5x scale
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.