Finding the Fourth Proportional to 243,313.32, 335,748.36 and 135,881.02
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Solution
The fourth proportional to 243,313.32, 335,748.36 and 135,881.02 is: 187,502.39
Step by Step Solution
- Step 1: Write the proportion equation
243,313.32 : 335,748.36 = 135,881.02 : x - Step 2: Convert to fraction form
243,313.32/335,748.36 = 135,881.02/x - Step 3: Cross multiply
243,313.32x = 335,748.36 × 135,881.02 - Step 4: Simplify right side
243,313.32x = 45,621,829,620.13 - Step 5: Solve for x
x = 45,621,829,620.13/243,313.32 - Step 6: Final answer
x = 187,502.39
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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.