Finding the Fourth Proportional to 274,219.36, 378,441.84 and 153,400.48
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Solution
The fourth proportional to 274,219.36, 378,441.84 and 153,400.48 is: 211,703.36
Step by Step Solution
- Step 1: Write the proportion equation
274,219.36 : 378,441.84 = 153,400.48 : x - Step 2: Convert to fraction form
274,219.36/378,441.84 = 153,400.48/x - Step 3: Cross multiply
274,219.36x = 378,441.84 × 153,400.48 - Step 4: Simplify right side
274,219.36x = 58,053,159,908.08 - Step 5: Solve for x
x = 58,053,159,908.08/274,219.36 - Step 6: Final answer
x = 211,703.36
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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.