Finding the Fourth Proportional to 512,612.82, 768,992.94 and 157,656.78
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Solution
The fourth proportional to 512,612.82, 768,992.94 and 157,656.78 is: 236,507.84
Step by Step Solution
- Step 1: Write the proportion equation
512,612.82 : 768,992.94 = 157,656.78 : x - Step 2: Convert to fraction form
512,612.82/768,992.94 = 157,656.78/x - Step 3: Cross multiply
512,612.82x = 768,992.94 × 157,656.78 - Step 4: Simplify right side
512,612.82x = 121,236,950,763.13 - Step 5: Solve for x
x = 121,236,950,763.13/512,612.82 - Step 6: Final answer
x = 236,507.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.