Finding the Fourth Proportional to 421,353.98, 581,468.50 and 230,367.38
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Solution
The fourth proportional to 421,353.98, 581,468.50 and 230,367.38 is: 317,906.99
Step by Step Solution
- Step 1: Write the proportion equation
421,353.98 : 581,468.50 = 230,367.38 : x - Step 2: Convert to fraction form
421,353.98/581,468.50 = 230,367.38/x - Step 3: Cross multiply
421,353.98x = 581,468.50 × 230,367.38 - Step 4: Simplify right side
421,353.98x = 133,951,374,897.53 - Step 5: Solve for x
x = 133,951,374,897.53/421,353.98 - Step 6: Final answer
x = 317,906.99
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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.