Finding the Fourth Proportional to 421,367.58, 581,344.83 and 239,950.87
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Solution
The fourth proportional to 421,367.58, 581,344.83 and 239,950.87 is: 331,051.09
Step by Step Solution
- Step 1: Write the proportion equation
421,367.58 : 581,344.83 = 239,950.87 : x - Step 2: Convert to fraction form
421,367.58/581,344.83 = 239,950.87/x - Step 3: Cross multiply
421,367.58x = 581,344.83 × 239,950.87 - Step 4: Simplify right side
421,367.58x = 139,494,196,275.14 - Step 5: Solve for x
x = 139,494,196,275.14/421,367.58 - Step 6: Final answer
x = 331,051.09
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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.