Finding the Fourth Proportional to 251,442.84, 346,976.64 and 138,265.68
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Solution
The fourth proportional to 251,442.84, 346,976.64 and 138,265.68 is: 190,798.68
Step by Step Solution
- Step 1: Write the proportion equation
251,442.84 : 346,976.64 = 138,265.68 : x - Step 2: Convert to fraction form
251,442.84/346,976.64 = 138,265.68/x - Step 3: Cross multiply
251,442.84x = 346,976.64 × 138,265.68 - Step 4: Simplify right side
251,442.84x = 47,974,961,073.72 - Step 5: Solve for x
x = 47,974,961,073.72/251,442.84 - Step 6: Final answer
x = 190,798.68
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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.