Finding the Fourth Proportional to 145,267.70, 217,967.26 and 74,153.60
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Solution
The fourth proportional to 145,267.70, 217,967.26 and 74,153.60 is: 111,263.94
Step by Step Solution
- Step 1: Write the proportion equation
145,267.70 : 217,967.26 = 74,153.60 : x - Step 2: Convert to fraction form
145,267.70/217,967.26 = 74,153.60/x - Step 3: Cross multiply
145,267.70x = 217,967.26 × 74,153.60 - Step 4: Simplify right side
145,267.70x = 16,163,057,011.14 - Step 5: Solve for x
x = 16,163,057,011.14/145,267.70 - Step 6: Final answer
x = 111,263.94
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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.