Finding the Fourth Proportional to 138,226.70, 207,349.47 and 47,004.95
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Solution
The fourth proportional to 138,226.70, 207,349.47 and 47,004.95 is: 70,510.63
Step by Step Solution
- Step 1: Write the proportion equation
138,226.70 : 207,349.47 = 47,004.95 : x - Step 2: Convert to fraction form
138,226.70/207,349.47 = 47,004.95/x - Step 3: Cross multiply
138,226.70x = 207,349.47 × 47,004.95 - Step 4: Simplify right side
138,226.70x = 9,746,451,988.25 - Step 5: Solve for x
x = 9,746,451,988.25/138,226.70 - Step 6: Final answer
x = 70,510.63
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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.