Finding the Fourth Proportional to 147,339.72, 221,040.29 and 47,509.99
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Solution
The fourth proportional to 147,339.72, 221,040.29 and 47,509.99 is: 71,274.88
Step by Step Solution
- Step 1: Write the proportion equation
147,339.72 : 221,040.29 = 47,509.99 : x - Step 2: Convert to fraction form
147,339.72/221,040.29 = 47,509.99/x - Step 3: Cross multiply
147,339.72x = 221,040.29 × 47,509.99 - Step 4: Simplify right side
147,339.72x = 10,501,621,533.67 - Step 5: Solve for x
x = 10,501,621,533.67/147,339.72 - Step 6: Final answer
x = 71,274.88
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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.