Finding the Fourth Proportional to 194,615.20, 291,922.80 and 106,041.70
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Solution
The fourth proportional to 194,615.20, 291,922.80 and 106,041.70 is: 159,062.55
Step by Step Solution
- Step 1: Write the proportion equation
194,615.20 : 291,922.80 = 106,041.70 : x - Step 2: Convert to fraction form
194,615.20/291,922.80 = 106,041.70/x - Step 3: Cross multiply
194,615.20x = 291,922.80 × 106,041.70 - Step 4: Simplify right side
194,615.20x = 30,955,989,980.76 - Step 5: Solve for x
x = 30,955,989,980.76/194,615.20 - Step 6: Final answer
x = 159,062.55
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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.