Finding the Fourth Proportional to 405,356.70, 608,060.14 and 135,509.13
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Solution
The fourth proportional to 405,356.70, 608,060.14 and 135,509.13 is: 203,272.08
Step by Step Solution
- Step 1: Write the proportion equation
405,356.70 : 608,060.14 = 135,509.13 : x - Step 2: Convert to fraction form
405,356.70/608,060.14 = 135,509.13/x - Step 3: Cross multiply
405,356.70x = 608,060.14 × 135,509.13 - Step 4: Simplify right side
405,356.70x = 82,397,700,220.31 - Step 5: Solve for x
x = 82,397,700,220.31/405,356.70 - Step 6: Final answer
x = 203,272.08
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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.