Finding the Fourth Proportional to 421,710.19, 581,968.46 and 230,727.68
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Solution
The fourth proportional to 421,710.19, 581,968.46 and 230,727.68 is: 318,408.79
Step by Step Solution
- Step 1: Write the proportion equation
421,710.19 : 581,968.46 = 230,727.68 : x - Step 2: Convert to fraction form
421,710.19/581,968.46 = 230,727.68/x - Step 3: Cross multiply
421,710.19x = 581,968.46 × 230,727.68 - Step 4: Simplify right side
421,710.19x = 134,276,232,608.97 - Step 5: Solve for x
x = 134,276,232,608.97/421,710.19 - Step 6: Final answer
x = 318,408.79
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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.