Finding the Fourth Proportional to 268,831.99, 403,317.16 and 79,284.70
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Solution
The fourth proportional to 268,831.99, 403,317.16 and 79,284.70 is: 118,947.45
Step by Step Solution
- Step 1: Write the proportion equation
268,831.99 : 403,317.16 = 79,284.70 : x - Step 2: Convert to fraction form
268,831.99/403,317.16 = 79,284.70/x - Step 3: Cross multiply
268,831.99x = 403,317.16 × 79,284.70 - Step 4: Simplify right side
268,831.99x = 31,976,880,035.45 - Step 5: Solve for x
x = 31,976,880,035.45/268,831.99 - Step 6: Final answer
x = 118,947.45
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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.