Finding the Fourth Proportional to 243,013.64, 335,358.36 and 135,577.28
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Solution
The fourth proportional to 243,013.64, 335,358.36 and 135,577.28 is: 187,096.39
Step by Step Solution
- Step 1: Write the proportion equation
243,013.64 : 335,358.36 = 135,577.28 : x - Step 2: Convert to fraction form
243,013.64/335,358.36 = 135,577.28/x - Step 3: Cross multiply
243,013.64x = 335,358.36 × 135,577.28 - Step 4: Simplify right side
243,013.64x = 45,466,974,274.06 - Step 5: Solve for x
x = 45,466,974,274.06/243,013.64 - Step 6: Final answer
x = 187,096.39
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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.