Finding the Fourth Proportional to 330,310.80, 455,901.48 and 217,144.08
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Solution
The fourth proportional to 330,310.80, 455,901.48 and 217,144.08 is: 299,706.54
Step by Step Solution
- Step 1: Write the proportion equation
330,310.80 : 455,901.48 = 217,144.08 : x - Step 2: Convert to fraction form
330,310.80/455,901.48 = 217,144.08/x - Step 3: Cross multiply
330,310.80x = 455,901.48 × 217,144.08 - Step 4: Simplify right side
330,310.80x = 98,996,307,445.24 - Step 5: Solve for x
x = 98,996,307,445.24/330,310.80 - Step 6: Final answer
x = 299,706.54
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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.