Finding the Fourth Proportional to 315,051.80, 472,577.70 and 115,305.80
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Solution
The fourth proportional to 315,051.80, 472,577.70 and 115,305.80 is: 172,958.70
Step by Step Solution
- Step 1: Write the proportion equation
315,051.80 : 472,577.70 = 115,305.80 : x - Step 2: Convert to fraction form
315,051.80/472,577.70 = 115,305.80/x - Step 3: Cross multiply
315,051.80x = 472,577.70 × 115,305.80 - Step 4: Simplify right side
315,051.80x = 54,490,949,760.66 - Step 5: Solve for x
x = 54,490,949,760.66/315,051.80 - Step 6: Final answer
x = 172,958.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.