Finding the Fourth Proportional to 150,175.81, 207,288.74 and 86,555.95
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Solution
The fourth proportional to 150,175.81, 207,288.74 and 86,555.95 is: 119,473.79
Step by Step Solution
- Step 1: Write the proportion equation
150,175.81 : 207,288.74 = 86,555.95 : x - Step 2: Convert to fraction form
150,175.81/207,288.74 = 86,555.95/x - Step 3: Cross multiply
150,175.81x = 207,288.74 × 86,555.95 - Step 4: Simplify right side
150,175.81x = 17,942,073,815.00 - Step 5: Solve for x
x = 17,942,073,815.00/150,175.81 - Step 6: Final answer
x = 119,473.79
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.