Finding the Fourth Proportional to 245,854.44, 339,251.09 and 138,421.71
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Solution
The fourth proportional to 245,854.44, 339,251.09 and 138,421.71 is: 191,006.17
Step by Step Solution
- Step 1: Write the proportion equation
245,854.44 : 339,251.09 = 138,421.71 : x - Step 2: Convert to fraction form
245,854.44/339,251.09 = 138,421.71/x - Step 3: Cross multiply
245,854.44x = 339,251.09 × 138,421.71 - Step 4: Simplify right side
245,854.44x = 46,959,715,305.06 - Step 5: Solve for x
x = 46,959,715,305.06/245,854.44 - Step 6: Final answer
x = 191,006.17
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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.