Finding the Fourth Proportional to 172,535.40, 258,900.30 and 67,340.70
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Solution
The fourth proportional to 172,535.40, 258,900.30 and 67,340.70 is: 101,048.99
Step by Step Solution
- Step 1: Write the proportion equation
172,535.40 : 258,900.30 = 67,340.70 : x - Step 2: Convert to fraction form
172,535.40/258,900.30 = 67,340.70/x - Step 3: Cross multiply
172,535.40x = 258,900.30 × 67,340.70 - Step 4: Simplify right side
172,535.40x = 17,434,527,432.21 - Step 5: Solve for x
x = 17,434,527,432.21/172,535.40 - Step 6: Final answer
x = 101,048.99
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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.