Finding the Fourth Proportional to 239,700.84, 330,785.09 and 130,807.33
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Solution
The fourth proportional to 239,700.84, 330,785.09 and 130,807.33 is: 180,512.99
Step by Step Solution
- Step 1: Write the proportion equation
239,700.84 : 330,785.09 = 130,807.33 : x - Step 2: Convert to fraction form
239,700.84/330,785.09 = 130,807.33/x - Step 3: Cross multiply
239,700.84x = 330,785.09 × 130,807.33 - Step 4: Simplify right side
239,700.84x = 43,269,115,578.12 - Step 5: Solve for x
x = 43,269,115,578.12/239,700.84 - Step 6: Final answer
x = 180,512.99
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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.