Finding the Fourth Proportional to 239,811.98, 330,931.78 and 132,381.68
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Solution
The fourth proportional to 239,811.98, 330,931.78 and 132,381.68 is: 182,681.88
Step by Step Solution
- Step 1: Write the proportion equation
239,811.98 : 330,931.78 = 132,381.68 : x - Step 2: Convert to fraction form
239,811.98/330,931.78 = 132,381.68/x - Step 3: Cross multiply
239,811.98x = 330,931.78 × 132,381.68 - Step 4: Simplify right side
239,811.98x = 43,809,303,016.18 - Step 5: Solve for x
x = 43,809,303,016.18/239,811.98 - Step 6: Final answer
x = 182,681.88
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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.