Finding the Fourth Proportional to 468,831.62, 646,989.62 and 253,971.68
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Solution
The fourth proportional to 468,831.62, 646,989.62 and 253,971.68 is: 350,481.99
Step by Step Solution
- Step 1: Write the proportion equation
468,831.62 : 646,989.62 = 253,971.68 : x - Step 2: Convert to fraction form
468,831.62/646,989.62 = 253,971.68/x - Step 3: Cross multiply
468,831.62x = 646,989.62 × 253,971.68 - Step 4: Simplify right side
468,831.62x = 164,317,039,464.10 - Step 5: Solve for x
x = 164,317,039,464.10/468,831.62 - Step 6: Final answer
x = 350,481.99
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1.5x scale
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.