Finding the Fourth Proportional to 246,178.18, 339,744.54 and 138,758.32
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Solution
The fourth proportional to 246,178.18, 339,744.54 and 138,758.32 is: 191,496.99
Step by Step Solution
- Step 1: Write the proportion equation
246,178.18 : 339,744.54 = 138,758.32 : x - Step 2: Convert to fraction form
246,178.18/339,744.54 = 138,758.32/x - Step 3: Cross multiply
246,178.18x = 339,744.54 × 138,758.32 - Step 4: Simplify right side
246,178.18x = 47,142,381,599.57 - Step 5: Solve for x
x = 47,142,381,599.57/246,178.18 - Step 6: Final answer
x = 191,496.99
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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.