Finding the Fourth Proportional to 408,568.74, 613,134.99 and 142,331.46
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Solution
The fourth proportional to 408,568.74, 613,134.99 and 142,331.46 is: 213,595.39
Step by Step Solution
- Step 1: Write the proportion equation
408,568.74 : 613,134.99 = 142,331.46 : x - Step 2: Convert to fraction form
408,568.74/613,134.99 = 142,331.46/x - Step 3: Cross multiply
408,568.74x = 613,134.99 × 142,331.46 - Step 4: Simplify right side
408,568.74x = 87,268,398,303.79 - Step 5: Solve for x
x = 87,268,398,303.79/408,568.74 - Step 6: Final answer
x = 213,595.39
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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.