Finding the Fourth Proportional to 243,005.91, 335,346.84 and 135,575.67
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Solution
The fourth proportional to 243,005.91, 335,346.84 and 135,575.67 is: 187,093.69
Step by Step Solution
- Step 1: Write the proportion equation
243,005.91 : 335,346.84 = 135,575.67 : x - Step 2: Convert to fraction form
243,005.91/335,346.84 = 135,575.67/x - Step 3: Cross multiply
243,005.91x = 335,346.84 × 135,575.67 - Step 4: Simplify right side
243,005.91x = 45,464,872,515.38 - Step 5: Solve for x
x = 45,464,872,515.38/243,005.91 - Step 6: Final answer
x = 187,093.69
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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.