Finding the Fourth Proportional to 243,197.34, 335,598.36 and 135,774.20
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Solution
The fourth proportional to 243,197.34, 335,598.36 and 135,774.20 is: 187,360.60
Step by Step Solution
- Step 1: Write the proportion equation
243,197.34 : 335,598.36 = 135,774.20 : x - Step 2: Convert to fraction form
243,197.34/335,598.36 = 135,774.20/x - Step 3: Cross multiply
243,197.34x = 335,598.36 × 135,774.20 - Step 4: Simplify right side
243,197.34x = 45,565,598,850.31 - Step 5: Solve for x
x = 45,565,598,850.31/243,197.34 - Step 6: Final answer
x = 187,360.60
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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.