Finding the Fourth Proportional to 408,868.81, 564,238.99 and 227,576.85
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Solution
The fourth proportional to 408,868.81, 564,238.99 and 227,576.85 is: 314,056.07
Step by Step Solution
- Step 1: Write the proportion equation
408,868.81 : 564,238.99 = 227,576.85 : x - Step 2: Convert to fraction form
408,868.81/564,238.99 = 227,576.85/x - Step 3: Cross multiply
408,868.81x = 564,238.99 × 227,576.85 - Step 4: Simplify right side
408,868.81x = 128,407,731,991.38 - Step 5: Solve for x
x = 128,407,731,991.38/408,868.81 - Step 6: Final answer
x = 314,056.07
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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.