Finding the Fourth Proportional to 426,090.23, 639,134.58 and 248,472.68
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Solution
The fourth proportional to 426,090.23, 639,134.58 and 248,472.68 is: 372,708.57
Step by Step Solution
- Step 1: Write the proportion equation
426,090.23 : 639,134.58 = 248,472.68 : x - Step 2: Convert to fraction form
426,090.23/639,134.58 = 248,472.68/x - Step 3: Cross multiply
426,090.23x = 639,134.58 × 248,472.68 - Step 4: Simplify right side
426,090.23x = 158,807,481,973.27 - Step 5: Solve for x
x = 158,807,481,973.27/426,090.23 - Step 6: Final answer
x = 372,708.57
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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.