Finding the Fourth Proportional to 243,139.05, 335,532.27 and 135,709.05
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Solution
The fourth proportional to 243,139.05, 335,532.27 and 135,709.05 is: 187,278.71
Step by Step Solution
- Step 1: Write the proportion equation
243,139.05 : 335,532.27 = 135,709.05 : x - Step 2: Convert to fraction form
243,139.05/335,532.27 = 135,709.05/x - Step 3: Cross multiply
243,139.05x = 335,532.27 × 135,709.05 - Step 4: Simplify right side
243,139.05x = 45,534,767,373.20 - Step 5: Solve for x
x = 45,534,767,373.20/243,139.05 - Step 6: Final answer
x = 187,278.71
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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.