Finding the Fourth Proportional to 221,088.63, 331,594.44 and 71,328.91
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Solution
The fourth proportional to 221,088.63, 331,594.44 and 71,328.91 is: 106,980.94
Step by Step Solution
- Step 1: Write the proportion equation
221,088.63 : 331,594.44 = 71,328.91 : x - Step 2: Convert to fraction form
221,088.63/331,594.44 = 71,328.91/x - Step 3: Cross multiply
221,088.63x = 331,594.44 × 71,328.91 - Step 4: Simplify right side
221,088.63x = 23,652,269,967.26 - Step 5: Solve for x
x = 23,652,269,967.26/221,088.63 - Step 6: Final answer
x = 106,980.94
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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.