Finding the Fourth Proportional to 298,529.76, 411,889.44 and 207,783.84
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Solution
The fourth proportional to 298,529.76, 411,889.44 and 207,783.84 is: 286,684.88
Step by Step Solution
- Step 1: Write the proportion equation
298,529.76 : 411,889.44 = 207,783.84 : x - Step 2: Convert to fraction form
298,529.76/411,889.44 = 207,783.84/x - Step 3: Cross multiply
298,529.76x = 411,889.44 × 207,783.84 - Step 4: Simplify right side
298,529.76x = 85,583,969,498.65 - Step 5: Solve for x
x = 85,583,969,498.65/298,529.76 - Step 6: Final answer
x = 286,684.88
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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.