Finding the Fourth Proportional to 216,358.92, 298,574.91 and 130,367.70
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Solution
The fourth proportional to 216,358.92, 298,574.91 and 130,367.70 is: 179,907.19
Step by Step Solution
- Step 1: Write the proportion equation
216,358.92 : 298,574.91 = 130,367.70 : x - Step 2: Convert to fraction form
216,358.92/298,574.91 = 130,367.70/x - Step 3: Cross multiply
216,358.92x = 298,574.91 × 130,367.70 - Step 4: Simplify right side
216,358.92x = 38,924,524,294.41 - Step 5: Solve for x
x = 38,924,524,294.41/216,358.92 - Step 6: Final answer
x = 179,907.19
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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.