Finding the Fourth Proportional to 193,837.71, 290,459.80 and 130,422.95
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Solution
The fourth proportional to 193,837.71, 290,459.80 and 130,422.95 is: 195,434.75
Step by Step Solution
- Step 1: Write the proportion equation
193,837.71 : 290,459.80 = 130,422.95 : x - Step 2: Convert to fraction form
193,837.71/290,459.80 = 130,422.95/x - Step 3: Cross multiply
193,837.71x = 290,459.80 × 130,422.95 - Step 4: Simplify right side
193,837.71x = 37,882,623,972.41 - Step 5: Solve for x
x = 37,882,623,972.41/193,837.71 - Step 6: Final answer
x = 195,434.75
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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.