Finding the Fourth Proportional to 370,129.86, 511,640.01 and 330,238.98
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Solution
The fourth proportional to 370,129.86, 511,640.01 and 330,238.98 is: 456,497.82
Step by Step Solution
- Step 1: Write the proportion equation
370,129.86 : 511,640.01 = 330,238.98 : x - Step 2: Convert to fraction form
370,129.86/511,640.01 = 330,238.98/x - Step 3: Cross multiply
370,129.86x = 511,640.01 × 330,238.98 - Step 4: Simplify right side
370,129.86x = 168,963,475,029.59 - Step 5: Solve for x
x = 168,963,475,029.59/370,129.86 - Step 6: Final answer
x = 456,497.82
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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.