Finding the Fourth Proportional to 251,445.84, 346,980.78 and 138,268.68
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Solution
The fourth proportional to 251,445.84, 346,980.78 and 138,268.68 is: 190,802.82
Step by Step Solution
- Step 1: Write the proportion equation
251,445.84 : 346,980.78 = 138,268.68 : x - Step 2: Convert to fraction form
251,445.84/346,980.78 = 138,268.68/x - Step 3: Cross multiply
251,445.84x = 346,980.78 × 138,268.68 - Step 4: Simplify right side
251,445.84x = 47,976,574,435.97 - Step 5: Solve for x
x = 47,976,574,435.97/251,445.84 - Step 6: Final answer
x = 190,802.82
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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.