Finding the Fourth Proportional to 309,623.58, 427,274.97 and 173,657.79
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Solution
The fourth proportional to 309,623.58, 427,274.97 and 173,657.79 is: 239,644.63
Step by Step Solution
- Step 1: Write the proportion equation
309,623.58 : 427,274.97 = 173,657.79 : x - Step 2: Convert to fraction form
309,623.58/427,274.97 = 173,657.79/x - Step 3: Cross multiply
309,623.58x = 427,274.97 × 173,657.79 - Step 4: Simplify right side
309,623.58x = 74,199,627,012.52 - Step 5: Solve for x
x = 74,199,627,012.52/309,623.58 - Step 6: Final answer
x = 239,644.63
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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.