Finding the Fourth Proportional to 290,831.70, 408,097.50 and 290,831.70
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Solution
The fourth proportional to 290,831.70, 408,097.50 and 290,831.70 is: 408,097.50
Step by Step Solution
- Step 1: Write the proportion equation
290,831.70 : 408,097.50 = 290,831.70 : x - Step 2: Convert to fraction form
290,831.70/408,097.50 = 290,831.70/x - Step 3: Cross multiply
290,831.70x = 408,097.50 × 290,831.70 - Step 4: Simplify right side
290,831.70x = 118,687,689,690.75 - Step 5: Solve for x
x = 118,687,689,690.75/290,831.70 - Step 6: Final answer
x = 408,097.50
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.