Finding the Fourth Proportional to 387,451.49, 581,201.87 and 103,137.44
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Solution
The fourth proportional to 387,451.49, 581,201.87 and 103,137.44 is: 154,712.71
Step by Step Solution
- Step 1: Write the proportion equation
387,451.49 : 581,201.87 = 103,137.44 : x - Step 2: Convert to fraction form
387,451.49/581,201.87 = 103,137.44/x - Step 3: Cross multiply
387,451.49x = 581,201.87 × 103,137.44 - Step 4: Simplify right side
387,451.49x = 59,943,669,573.32 - Step 5: Solve for x
x = 59,943,669,573.32/387,451.49 - Step 6: Final answer
x = 154,712.71
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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.