Finding the Fourth Proportional to 203,502.79, 305,313.87 and 91,158.02
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Solution
The fourth proportional to 203,502.79, 305,313.87 and 91,158.02 is: 136,763.77
Step by Step Solution
- Step 1: Write the proportion equation
203,502.79 : 305,313.87 = 91,158.02 : x - Step 2: Convert to fraction form
203,502.79/305,313.87 = 91,158.02/x - Step 3: Cross multiply
203,502.79x = 305,313.87 × 91,158.02 - Step 4: Simplify right side
203,502.79x = 27,831,807,867.74 - Step 5: Solve for x
x = 27,831,807,867.74/203,502.79 - Step 6: Final answer
x = 136,763.77
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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.