Finding the Fourth Proportional to 147,564.20, 221,321.54 and 40,958.99
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Solution
The fourth proportional to 147,564.20, 221,321.54 and 40,958.99 is: 61,431.61
Step by Step Solution
- Step 1: Write the proportion equation
147,564.20 : 221,321.54 = 40,958.99 : x - Step 2: Convert to fraction form
147,564.20/221,321.54 = 40,958.99/x - Step 3: Cross multiply
147,564.20x = 221,321.54 × 40,958.99 - Step 4: Simplify right side
147,564.20x = 9,065,105,432.24 - Step 5: Solve for x
x = 9,065,105,432.24/147,564.20 - Step 6: Final answer
x = 61,431.61
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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.