Finding the Fourth Proportional to 165,730.74, 228,708.81 and 90,277.62
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Solution
The fourth proportional to 165,730.74, 228,708.81 and 90,277.62 is: 124,583.33
Step by Step Solution
- Step 1: Write the proportion equation
165,730.74 : 228,708.81 = 90,277.62 : x - Step 2: Convert to fraction form
165,730.74/228,708.81 = 90,277.62/x - Step 3: Cross multiply
165,730.74x = 228,708.81 × 90,277.62 - Step 4: Simplify right side
165,730.74x = 20,647,287,039.83 - Step 5: Solve for x
x = 20,647,287,039.83/165,730.74 - Step 6: Final answer
x = 124,583.33
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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.