Finding the Fourth Proportional to 239,808.98, 330,936.06 and 132,378.75
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Solution
The fourth proportional to 239,808.98, 330,936.06 and 132,378.75 is: 182,682.50
Step by Step Solution
- Step 1: Write the proportion equation
239,808.98 : 330,936.06 = 132,378.75 : x - Step 2: Convert to fraction form
239,808.98/330,936.06 = 132,378.75/x - Step 3: Cross multiply
239,808.98x = 330,936.06 × 132,378.75 - Step 4: Simplify right side
239,808.98x = 43,808,901,952.73 - Step 5: Solve for x
x = 43,808,901,952.73/239,808.98 - Step 6: Final answer
x = 182,682.50
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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.