Finding the Fourth Proportional to 251,328.10, 346,828.62 and 138,148.42
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Solution
The fourth proportional to 251,328.10, 346,828.62 and 138,148.42 is: 190,642.53
Step by Step Solution
- Step 1: Write the proportion equation
251,328.10 : 346,828.62 = 138,148.42 : x - Step 2: Convert to fraction form
251,328.10/346,828.62 = 138,148.42/x - Step 3: Cross multiply
251,328.10x = 346,828.62 × 138,148.42 - Step 4: Simplify right side
251,328.10x = 47,913,825,863.78 - Step 5: Solve for x
x = 47,913,825,863.78/251,328.10 - Step 6: Final answer
x = 190,642.53
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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.