Finding the Fourth Proportional to 330,716.16, 455,578.24 and 239,804.96
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Solution
The fourth proportional to 330,716.16, 455,578.24 and 239,804.96 is: 330,343.46
Step by Step Solution
- Step 1: Write the proportion equation
330,716.16 : 455,578.24 = 239,804.96 : x - Step 2: Convert to fraction form
330,716.16/455,578.24 = 239,804.96/x - Step 3: Cross multiply
330,716.16x = 455,578.24 × 239,804.96 - Step 4: Simplify right side
330,716.16x = 109,249,921,620.07 - Step 5: Solve for x
x = 109,249,921,620.07/330,716.16 - Step 6: Final answer
x = 330,343.46
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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.