Finding the Fourth Proportional to 251,432.18, 346,976.41 and 138,254.93
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Solution
The fourth proportional to 251,432.18, 346,976.41 and 138,254.93 is: 190,791.80
Step by Step Solution
- Step 1: Write the proportion equation
251,432.18 : 346,976.41 = 138,254.93 : x - Step 2: Convert to fraction form
251,432.18/346,976.41 = 138,254.93/x - Step 3: Cross multiply
251,432.18x = 346,976.41 × 138,254.93 - Step 4: Simplify right side
251,432.18x = 47,971,199,015.30 - Step 5: Solve for x
x = 47,971,199,015.30/251,432.18 - Step 6: Final answer
x = 190,791.80
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1.5x scale
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.