Finding the Fourth Proportional to 147,620.05, 221,465.22 and 47,780.26
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Solution
The fourth proportional to 147,620.05, 221,465.22 and 47,780.26 is: 71,681.76
Step by Step Solution
- Step 1: Write the proportion equation
147,620.05 : 221,465.22 = 47,780.26 : x - Step 2: Convert to fraction form
147,620.05/221,465.22 = 47,780.26/x - Step 3: Cross multiply
147,620.05x = 221,465.22 × 47,780.26 - Step 4: Simplify right side
147,620.05x = 10,581,664,685.23 - Step 5: Solve for x
x = 10,581,664,685.23/147,620.05 - Step 6: Final answer
x = 71,681.76
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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.