Finding the Fourth Proportional to 486,109.87, 670,831.68 and 268,318.62
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Solution
The fourth proportional to 486,109.87, 670,831.68 and 268,318.62 is: 370,279.73
Step by Step Solution
- Step 1: Write the proportion equation
486,109.87 : 670,831.68 = 268,318.62 : x - Step 2: Convert to fraction form
486,109.87/670,831.68 = 268,318.62/x - Step 3: Cross multiply
486,109.87x = 670,831.68 × 268,318.62 - Step 4: Simplify right side
486,109.87x = 179,996,631,011.15 - Step 5: Solve for x
x = 179,996,631,011.15/486,109.87 - Step 6: Final answer
x = 370,279.73
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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.