Finding the Fourth Proportional to 235,831.21, 325,430.64 and 133,858.76
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Solution
The fourth proportional to 235,831.21, 325,430.64 and 133,858.76 is: 184,715.76
Step by Step Solution
- Step 1: Write the proportion equation
235,831.21 : 325,430.64 = 133,858.76 : x - Step 2: Convert to fraction form
235,831.21/325,430.64 = 133,858.76/x - Step 3: Cross multiply
235,831.21x = 325,430.64 × 133,858.76 - Step 4: Simplify right side
235,831.21x = 43,561,740,309.25 - Step 5: Solve for x
x = 43,561,740,309.25/235,831.21 - Step 6: Final answer
x = 184,715.76
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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.