Finding the Fourth Proportional to 319,739.18, 441,240.36 and 176,499.09
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Solution
The fourth proportional to 319,739.18, 441,240.36 and 176,499.09 is: 243,568.91
Step by Step Solution
- Step 1: Write the proportion equation
319,739.18 : 441,240.36 = 176,499.09 : x - Step 2: Convert to fraction form
319,739.18/441,240.36 = 176,499.09/x - Step 3: Cross multiply
319,739.18x = 441,240.36 × 176,499.09 - Step 4: Simplify right side
319,739.18x = 77,878,522,011.27 - Step 5: Solve for x
x = 77,878,522,011.27/319,739.18 - Step 6: Final answer
x = 243,568.91
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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.