Finding the Fourth Proportional to 243,242.28, 335,671.12 and 135,814.12
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Solution
The fourth proportional to 243,242.28, 335,671.12 and 135,814.12 is: 187,421.68
Step by Step Solution
- Step 1: Write the proportion equation
243,242.28 : 335,671.12 = 135,814.12 : x - Step 2: Convert to fraction form
243,242.28/335,671.12 = 135,814.12/x - Step 3: Cross multiply
243,242.28x = 335,671.12 × 135,814.12 - Step 4: Simplify right side
243,242.28x = 45,588,877,772.21 - Step 5: Solve for x
x = 45,588,877,772.21/243,242.28 - Step 6: Final answer
x = 187,421.68
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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.