Finding the Fourth Proportional to 245,682.16, 339,037.41 and 138,252.13
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Solution
The fourth proportional to 245,682.16, 339,037.41 and 138,252.13 is: 190,785.70
Step by Step Solution
- Step 1: Write the proportion equation
245,682.16 : 339,037.41 = 138,252.13 : x - Step 2: Convert to fraction form
245,682.16/339,037.41 = 138,252.13/x - Step 3: Cross multiply
245,682.16x = 339,037.41 × 138,252.13 - Step 4: Simplify right side
245,682.16x = 46,872,644,082.18 - Step 5: Solve for x
x = 46,872,644,082.18/245,682.16 - Step 6: Final answer
x = 190,785.70
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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.