Finding the Fourth Proportional to 421,173.26, 581,210.47 and 230,188.02
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Solution
The fourth proportional to 421,173.26, 581,210.47 and 230,188.02 is: 317,654.75
Step by Step Solution
- Step 1: Write the proportion equation
421,173.26 : 581,210.47 = 230,188.02 : x - Step 2: Convert to fraction form
421,173.26/581,210.47 = 230,188.02/x - Step 3: Cross multiply
421,173.26x = 581,210.47 × 230,188.02 - Step 4: Simplify right side
421,173.26x = 133,787,687,292.57 - Step 5: Solve for x
x = 133,787,687,292.57/421,173.26 - Step 6: Final answer
x = 317,654.75
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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.