Finding the Fourth Proportional to 438,754.68, 658,048.76 and 213,888.96
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Solution
The fourth proportional to 438,754.68, 658,048.76 and 213,888.96 is: 320,792.85
Step by Step Solution
- Step 1: Write the proportion equation
438,754.68 : 658,048.76 = 213,888.96 : x - Step 2: Convert to fraction form
438,754.68/658,048.76 = 213,888.96/x - Step 3: Cross multiply
438,754.68x = 658,048.76 × 213,888.96 - Step 4: Simplify right side
438,754.68x = 140,749,364,905.69 - Step 5: Solve for x
x = 140,749,364,905.69/438,754.68 - Step 6: Final answer
x = 320,792.85
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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.