Finding the Fourth Proportional to 421,459.94, 581,624.84 and 240,167.99
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Solution
The fourth proportional to 421,459.94, 581,624.84 and 240,167.99 is: 331,437.59
Step by Step Solution
- Step 1: Write the proportion equation
421,459.94 : 581,624.84 = 240,167.99 : x - Step 2: Convert to fraction form
421,459.94/581,624.84 = 240,167.99/x - Step 3: Cross multiply
421,459.94x = 581,624.84 × 240,167.99 - Step 4: Simplify right side
421,459.94x = 139,687,667,556.03 - Step 5: Solve for x
x = 139,687,667,556.03/421,459.94 - Step 6: Final answer
x = 331,437.59
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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.