Finding the Fourth Proportional to 329,128.80, 493,710.12 and 92,489.94
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Solution
The fourth proportional to 329,128.80, 493,710.12 and 92,489.94 is: 138,739.66
Step by Step Solution
- Step 1: Write the proportion equation
329,128.80 : 493,710.12 = 92,489.94 : x - Step 2: Convert to fraction form
329,128.80/493,710.12 = 92,489.94/x - Step 3: Cross multiply
329,128.80x = 493,710.12 × 92,489.94 - Step 4: Simplify right side
329,128.80x = 45,663,219,376.19 - Step 5: Solve for x
x = 45,663,219,376.19/329,128.80 - Step 6: Final answer
x = 138,739.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.