Finding the Fourth Proportional to 330,041.98, 455,445.74 and 179,135.74
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Solution
The fourth proportional to 330,041.98, 455,445.74 and 179,135.74 is: 247,200.70
Step by Step Solution
- Step 1: Write the proportion equation
330,041.98 : 455,445.74 = 179,135.74 : x - Step 2: Convert to fraction form
330,041.98/455,445.74 = 179,135.74/x - Step 3: Cross multiply
330,041.98x = 455,445.74 × 179,135.74 - Step 4: Simplify right side
330,041.98x = 81,586,609,664.75 - Step 5: Solve for x
x = 81,586,609,664.75/330,041.98 - Step 6: Final answer
x = 247,200.70
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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.