Finding the Fourth Proportional to 399,400.71, 599,106.36 and 133,161.31
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Solution
The fourth proportional to 399,400.71, 599,106.36 and 133,161.31 is: 199,743.73
Step by Step Solution
- Step 1: Write the proportion equation
399,400.71 : 599,106.36 = 133,161.31 : x - Step 2: Convert to fraction form
399,400.71/599,106.36 = 133,161.31/x - Step 3: Cross multiply
399,400.71x = 599,106.36 × 133,161.31 - Step 4: Simplify right side
399,400.71x = 79,777,787,726.93 - Step 5: Solve for x
x = 79,777,787,726.93/399,400.71 - Step 6: Final answer
x = 199,743.73
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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.