Finding the Fourth Proportional to 190,911.70, 286,367.55 and 159,807.70
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Solution
The fourth proportional to 190,911.70, 286,367.55 and 159,807.70 is: 239,711.55
Step by Step Solution
- Step 1: Write the proportion equation
190,911.70 : 286,367.55 = 159,807.70 : x - Step 2: Convert to fraction form
190,911.70/286,367.55 = 159,807.70/x - Step 3: Cross multiply
190,911.70x = 286,367.55 × 159,807.70 - Step 4: Simplify right side
190,911.70x = 45,763,739,520.14 - Step 5: Solve for x
x = 45,763,739,520.14/190,911.70 - Step 6: Final answer
x = 239,711.55
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1.5x scale
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.