Finding the Fourth Proportional to 274,295.47, 378,509.97 and 153,415.84
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Solution
The fourth proportional to 274,295.47, 378,509.97 and 153,415.84 is: 211,703.92
Step by Step Solution
- Step 1: Write the proportion equation
274,295.47 : 378,509.97 = 153,415.84 : x - Step 2: Convert to fraction form
274,295.47/378,509.97 = 153,415.84/x - Step 3: Cross multiply
274,295.47x = 378,509.97 × 153,415.84 - Step 4: Simplify right side
274,295.47x = 58,069,424,995.92 - Step 5: Solve for x
x = 58,069,424,995.92/274,295.47 - Step 6: Final answer
x = 211,703.92
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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.