Finding the Fourth Proportional to 157,178.82, 235,768.30 and 51,997.79
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Solution
The fourth proportional to 157,178.82, 235,768.30 and 51,997.79 is: 77,996.70
Step by Step Solution
- Step 1: Write the proportion equation
157,178.82 : 235,768.30 = 51,997.79 : x - Step 2: Convert to fraction form
157,178.82/235,768.30 = 51,997.79/x - Step 3: Cross multiply
157,178.82x = 235,768.30 × 51,997.79 - Step 4: Simplify right side
157,178.82x = 12,259,429,373.22 - Step 5: Solve for x
x = 12,259,429,373.22/157,178.82 - Step 6: Final answer
x = 77,996.70
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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.